Solved question paper for CHEMISTRY May-2010 (B-TECH 1st-2nd)
Solved Question Paper
Engineering chemistry May-2010
PTU • B-TECH • Mechanical Engineering • 1st-2nd • May-2010
engineering chemistry previous year question papers on BRpaper are organized for students of Punjab Technical University’s Bachelor of Technology program, 1st-2nd semester. This section makes it easier to browse subject-wise old question papers for engineering chemistry, so students can review how questions are typically framed in past exams and get a sense of the exam pattern. Many students search for engineering chemistry previous year question paper while preparing for exams, and this page is built to support exactly that kind of subject-wise browsing and revision. BRpaper is not the official website of Punjab Technical University or any institution, and it does not publish official notices or academic updates.
PART A
1. Spectroscopy and its Applications:
An introduction UV/Visible Spectroscopy: Selection rules; Line widths and intensity of spectral lines; Principle and instrumentation; Electronic Transitions; Chromophores & auxochromes; Factors affecting λMax & intensity of spectral lines; Franck-Condon principle; Applications. IR Spectroscopy: Principle and instrumentation; Vibrational frequency; Fundamental modes of vibrations and types; Anharmonics; Factors affecting vibrational frequency; Applications. NMR Spectroscopy: Principle & instrumentation; Chemical shift; Spin-Spin Splitting; High-resolution NMR spectrum (PMR only). (7)
2. Photochemistry:
Introduction; Photo-physical & photochemical processes; Light sources in photochemistry; Beer-Lambert Law; Laws of Photochemistry; Quantum yield (primary and overall); Primary and secondary photochemical reactions; Jablonski diagram; Semiconductor photochemistry, Photovoltaic cells, Introduction to optical sensors, Introduction to supra-molecular photochemistry. (5)
3. Water and its Treatment:
Boiler feed water: Specification, Scales and sludge fermentation; Priming & foaming; Different methods of the water purifications and softening; Desalination of water; Water for domestic use: Specification; Disinfection of water.
4. Green Chemistry and its Applications:
Introductory overview - Definition and concepts of Green chemistry; Emergence of Green chemistry; Twelve principles of Green Chemistry with emphasis on the use of alternative feedstock (biofuels); Use of innocuous reagents in natural processes; Alternative solvents; Design of the safer chemicals; Designing alternative reaction methodology. Microwave and ultrasonic radiation in Green synthesis - Minimizing energy consumption. (4)
PART B
5. Corrosion and its Prevention:
Introduction; Different types of corrosion - Wet and Dry corrosion; Different types of surface films; Mechanisms of wet corrosion; Galvanic corrosion; Galvanic Series; Concentration cell corrosion and differential aeration corrosion; Soil and microbial corrosions; waterline, stress corrosions; Various methods of corrosion control. (5)
6. Polymers and Reinforced Composites:
Introduction; Functionality; Types of polymerization; Specific features of polymers; Structures - regularity and irregularity; Tacticity of polymers; Average molecular weights and size; Determination of molecular weight by number average method; Effect of molecular weight on the properties of polymers; Introduction to polymer reinforced composite. (5)
7. Nanochemistry:
Introduction; Materials self-assembly; Molecular vs. materials self-assembly; Self-assembling materials; Two-dimensional assemblies; Mesoscale self-assembly; Coercing colloids; Nanocrystals; Supramolecular structures; Nanoscale materials; Future perspectives. (5)
8. Petrochemicals:
Introduction; First, second & third generation petrochemicals; Primary Raw Materials for Petrochemicals. Natural gas: Natural gas treatment processes; Natural gas liquids; Properties of natural gas; Crude oil: Composition of crude oil- Hydrocarbon compounds; Non-hydrocarbon compounds; Metallic Compounds, Crude oil classification; Physical separation processes; Conversion processes; Production of ethylene and propylene
Solved Questions
Solved-
What is break point chlorination?Short Answer 2 Marks May-2010 • PTU B-TECH
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Dec 2016 Explain the break point chlorination.
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Bolt and nut made of same material is preferred in practice. Why?Short Answer 2 Marks May-2010 • PTU B-TECH
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What is R value in chromatography?Short Answer 2 Marks May-2010 • PTU B-TECH
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May 2007 What is Rf value in chromatography?
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Dec 2007 What is Rf value in chromatography?
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Dec 2006 What is Rf value in chromatography?
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An aqueous solution of copper sulphate is acidic in nature. Why?Short Answer 2 Marks May-2010 • PTU B-TECH
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What are the dark reactions?Short Answer 2 Marks May-2010 • PTU B-TECH
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Corrosion is reverse to extraction. Explain.Short Answer 2 Marks May-2010 • PTU B-TECH
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Dec 2009 Corrosion is reverse to extraction. Justify.
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Define and explain degree of freedom.Short Answer 2 Marks May-2010 • PTU B-TECH
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May 2008 Define and explain degree of freedom.
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Dec 2005 Define and explain the term “Degrees of freedom” of a system with suitable examples.
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Why is TMS used as an internal standard for NMR?Short Answer 2 Marks May-2010 • PTU B-TECH
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May 2020 Why is TMS used as an internal standard in NMR spectroscopy?
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May 2014 What is the purpose of using TMS in recording ^1H NMR spectrum?
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Dec 2007 Why is TMS used as an internal standard in NMR spectroscopy?
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Why is water softened by zeolites unfit for use in boilers?Short Answer 2 Marks May-2010 • PTU B-TECH
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May 2015 Why is water softened before using in a boiler?
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Dec 2015 Why is water softened before using in a boiler?
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May 2005 What are zeolites? Why is water softened by zeolite process unfit for use in boilers?
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Mention two limitations of phase rule.Short Answer 2 Marks May-2010 • PTU B-TECH
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What are ion exchange resins?Short Answer May-2010 • PTU B-TECH
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Discuss their application in water softening.Long Answer May-2010 • PTU B-TECH
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How are spent resins regenerated?Short Answer May-2010 • PTU B-TECH
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Explain the process of galvanization of iron. How does it prevent the corrosion of iron?Long Answer May-2010 • PTU B-TECH
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Dec 2012 Explain how rusting of iron is prevented by galvanization.
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Outline the difference in hydrogen embrittlement and pitting corrosion with suitable examples.Long Answer May-2010 • PTU B-TECH
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Explain partition chromatography.Long Answer May-2010 • PTU B-TECH
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May 2017
What is partition chromatography?
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May 2016 What is the basic principle of Chromatography? Give various types of liquid chromatography.
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Dec 2016 Name the two phases of chromatography.
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May 2015 What is the basic principle of chromatographic techniques?
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May 2015 Discuss various types of liquid chromatography.
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Dec 2015 What is the basic principle of chromatographic techniques?
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May 2014 What is chromatography?
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May 2014 Define chromatography. Discuss various types of chromatography.
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May 2014 Give the applications of chromatography.
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May 2013 What do you understand by partition chromatography?
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May 2013 What are the types of liquid chromatography?
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May 2012 What is partition chromatography?
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May 2012 What is chromatography? Discuss its classification.
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Dec 2012 What is chromatography?
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Dec 2012 Discuss classification of chromatography.
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May 2011 What are the advantages of chromatography?
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May 2011 What is chromatography? Discuss the types of chromatography.
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Dec 2011 Give the classification of chromatography.
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May 2010 Explain paper chromatography.
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May 2010 Explain thin layer chromatography.
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Dec 2010 How chromatographic separation methods can be classified?
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Dec 2010 Briefly discuss the applications of chromatography.
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May 2007 What are various classes of chromatography? Bring out clearly the principles involved in each case.
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Dec 2007 What are various classes of chromatography? Bring out clearly the principles involved in each case.
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Dec 2006 What are various classes of chromatography? Bring out clearly the principles involved in each case.
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May 2005 How are chromatographic techniques classified? Discuss in brief chromatographic mechanism.
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May 2005 Explain the chromatographic development with suitable example.
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Explain paper chromatography.Long Answer May-2010 • PTU B-TECH
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May 2017
What is partition chromatography?
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May 2016 What is the basic principle of Chromatography? Give various types of liquid chromatography.
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Dec 2016 Name the two phases of chromatography.
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May 2015 What is the basic principle of chromatographic techniques?
-
May 2015 Discuss various types of liquid chromatography.
-
Dec 2015 What is the basic principle of chromatographic techniques?
-
May 2014 What is chromatography?
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May 2014 Define chromatography. Discuss various types of chromatography.
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May 2014 Give the applications of chromatography.
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May 2013 What do you understand by partition chromatography?
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May 2013 What are the types of liquid chromatography?
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May 2012 What is partition chromatography?
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May 2012 What is chromatography? Discuss its classification.
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Dec 2012 What is chromatography?
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Dec 2012 Discuss classification of chromatography.
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May 2011 What are the advantages of chromatography?
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May 2011 What is chromatography? Discuss the types of chromatography.
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Dec 2011 Give the classification of chromatography.
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May 2010 Explain partition chromatography.
-
May 2010 Explain thin layer chromatography.
-
Dec 2010 How chromatographic separation methods can be classified?
-
Dec 2010 Briefly discuss the applications of chromatography.
-
May 2007 What are various classes of chromatography? Bring out clearly the principles involved in each case.
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Dec 2007 What are various classes of chromatography? Bring out clearly the principles involved in each case.
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Dec 2006 What are various classes of chromatography? Bring out clearly the principles involved in each case.
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May 2005 How are chromatographic techniques classified? Discuss in brief chromatographic mechanism.
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May 2005 Explain the chromatographic development with suitable example.
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Explain thin layer chromatography.Long Answer May-2010 • PTU B-TECH
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May 2017
What is partition chromatography?
-
May 2016 What is the basic principle of Chromatography? Give various types of liquid chromatography.
-
Dec 2016 Name the two phases of chromatography.
-
May 2015 What is the basic principle of chromatographic techniques?
-
May 2015 Discuss various types of liquid chromatography.
-
Dec 2015 What is the basic principle of chromatographic techniques?
-
May 2014 What is chromatography?
-
May 2014 Define chromatography. Discuss various types of chromatography.
-
May 2014 Give the applications of chromatography.
-
May 2013 What do you understand by partition chromatography?
-
May 2013 What are the types of liquid chromatography?
-
May 2012 What is partition chromatography?
-
May 2012 What is chromatography? Discuss its classification.
-
Dec 2012 What is chromatography?
-
Dec 2012 Discuss classification of chromatography.
-
May 2011 What are the advantages of chromatography?
-
May 2011 What is chromatography? Discuss the types of chromatography.
-
Dec 2011 Give the classification of chromatography.
-
May 2010 Explain partition chromatography.
-
May 2010 Explain paper chromatography.
-
Dec 2010 How chromatographic separation methods can be classified?
-
Dec 2010 Briefly discuss the applications of chromatography.
-
May 2007 What are various classes of chromatography? Bring out clearly the principles involved in each case.
-
Dec 2007 What are various classes of chromatography? Bring out clearly the principles involved in each case.
-
Dec 2006 What are various classes of chromatography? Bring out clearly the principles involved in each case.
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May 2005 How are chromatographic techniques classified? Discuss in brief chromatographic mechanism.
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May 2005 Explain the chromatographic development with suitable example.
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What are secondary cells?Short Answer May-2010 • PTU B-TECH
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Describe the construction of one secondary cell.Long Answer May-2010 • PTU B-TECH
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A cell consists of two hydrogen electrodes. The negative electrode is in contact with a solution of 10^-4 M hydrogen ions. The EMF of the cell is 0.118 V at 25°C. Calculate the concentration of hydrogen ion at positive electrode.Long Answer May-2010 • PTU B-TECH
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Dec 2007 A cell consists of two hydrogen electrodes. The negative electrode is in contact with a solution of 10^-6 M hydrogen ions. The EMF of the cell is 0.118 V at 25°C. Calculate the concentration of hydrogen ion at the positive electrode.
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Describe and discuss Jablonski diagram for depicting various photo processes.Long Answer May-2010 • PTU B-TECH
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May 2007 Describe and discuss Jablonski diagram for depicting various photo processes.
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Dec 2006 Describe and discuss Jablonski diagram for depicting various photo processes.
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What are the conditions required for laser action to take place?Short Answer May-2010 • PTU B-TECH
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Describe optical pumping of lasers.Long Answer May-2010 • PTU B-TECH
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Explain processes that contribute to the finite width of a spectral line.Long Answer May-2010 • PTU B-TECH
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Dec 2016 What do you understand by natural linewidth of a spectral line?
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Dec 2016 Discuss the factors responsible for intensity of spectral lines.
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May 2012 Discuss factors contributing to the broadening of a spectral line.
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May 2012 Discuss the factors responsible for intensity of spectral lines.
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May 2008 Explain processes which contribute to the finite width of a spectral line.
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Dec 2005 Explain the line width of spectra.
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What are different kinds of electronic transitions?Short Answer May-2010 • PTU B-TECH
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May 2016 What are different kinds of electronic transitions? Explain each type with suitable examples.
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May 2008 What are different kinds of electronic transitions? Explain with examples (molecules that show these transitions).
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Explain chromophores and auxophores.Short Answer May-2010 • PTU B-TECH
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May 2014 What is a chromophore and auxochrome?
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May 2005 Explain Chromophores and Auxochromes.
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Give the high resolution 1H NMR of methyl ethyl ether.Long Answer May-2010 • PTU B-TECH
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Write short notes on chemical shift.Short Answer May-2010 • PTU B-TECH
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May 2007 Write brief notes on chemical shift.
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Dec 2007 Write brief note on chemical shift.
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Dec 2006 Write brief notes on Chemical Shift.
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Write short notes on magnetic resonance imaging.Short Answer May-2010 • PTU B-TECH
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What is condensed phase rule?Short Answer May-2010 • PTU B-TECH
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Dec 2017
What do you understand by reduced phase rule?
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May 2014 What is phase rule?
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Dec 2012 What is phase rule?
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May 2010 When is condensed phase rule applied?
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May 2005 What is phase rule? What is its significance?
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Dec 2005 What is condensed Phase Rule? When is it applied?
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When is condensed phase rule applied?Short Answer May-2010 • PTU B-TECH
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Dec 2017
What do you understand by reduced phase rule?
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May 2014 What is phase rule?
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Dec 2012 What is phase rule?
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May 2010 What is condensed phase rule?
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May 2005 What is phase rule? What is its significance?
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Dec 2005 What is condensed Phase Rule? When is it applied?
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Draw a neat labelled phase diagram of water system and explain areas, curves and triple points on it.Long Answer May-2010 • PTU B-TECH
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Dec 2023 Draw the phase diagram of one component water system.
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May 2013 Draw well labelled phase diagram of water. Describe in detail.
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Dec 2012 Draw well labelled phase diagram of water and explain.
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FAQ
Frequently Asked Questions
Answers about this subject, solved papers, and preparation.
01 Where can I find engineering chemistry previous year question papers for Bachelor of Technology, 1st-2nd semester?
This page lists engineering chemistry question papers uploaded for Punjab Technical University Bachelor of Technology, 1st-2nd semester, organized for subject-wise browsing where available.
02 Are these official Punjab Technical University question papers?
BRpaper is not the official website of Punjab Technical University. These papers are shared for reference and revision purposes only and are not official university material.
03 How can previous year engineering chemistry papers help in exam preparation?
Reviewing past papers can help you understand how questions are typically framed, notice commonly repeated topics, and get a sense of the exam pattern before your own exam.
04 What kind of topics does engineering chemistry usually cover?
The question papers here relate to the official engineering chemistry syllabus set by the university for this course and semester.
05 Does this page include a engineering chemistry previous year question paper or solved answers?
This page focuses on providing access to the previous year question papers themselves. A separate question bank or solved answers may not be available for every paper.
06 Can I find papers for other subjects in the same Bachelor of Technology?
Yes, BRpaper organizes papers by university, course, stream, and semester, so you can browse other subjects within the same Punjab Technical University Bachelor of Technology.