Jump to a section

Chemistry - Thermodynamics (C)

Practise 48 VITEEE previous year questions on Thermodynamics (C), compiled from papers spanning 2006 to 2024. Each question is pulled directly from the actual exam paper it appeared in, so you're practising in the exact style and difficulty VITEEE tests.

Thermodynamics (C) has been asked in 18 of the 18 years of VITEEE papers analysed (2006–2024), with 48 questions in all. 46% of them were easy, 42% moderate and 13% tough. Most of its questions came from 2016, with 5 questions that year. In the last three years (2022–2024) it had 7 questions across 3 papers, about 2.3 per paper.

The chapter's 4 topics are not weighted equally: Third law of thermodynamics (16 questions, 33%), Laws of Thermochemistry and Enthalpy Change (15 questions, 31%), and Entropy and Second law of thermodynamics (11 questions, 23%) have been asked the most. Third law of thermodynamics has also led over the last five years, with 4 questions. Laws of Thermochemistry and Enthalpy Change has produced the most tough questions (4).

  1. 1The bond dissociation energies for and ICl are and respectively. The enthalpy of sublimation of iodine is . What is the standard enthalpy of2024Laws of Thermochemistry and Enthalpy Change
  2. 2Using the Gibbs free energy change, . For the reaction, The of in water at is2024Third law of thermodynamics
  3. 3The decomposition of limestone \( {CaCO}_3( {~s})= {CaO}( {s})+ {CO}_2( {~g})\) is non-spontaneous at \(298 {~K}\). The \( {H}^{ }\) and \( 2023Third law of thermodynamics
  4. 4Calculate the entropy change for \( {CH}_4( {~g})+ {H}_2 {O}( {g}) 3 {H}_2( {~g})+ {CO}( {g}) {, using }\) the following data : \( {array}{l2023Entropy and Second law of thermodynamics
  5. 5According to the third law of thermodynamics which one of the following quantities for a perfectly crystalline solid is zero at absolute zer2023Entropy and Second law of thermodynamics
  6. 6Identify the correct statement for change of Gibbs energy for a system \( ( {G}_{ {system }} )\) at constant temperature and pressure :2022Third law of thermodynamics
  7. 7Considering entropy (\( {S}\)) as a thermodynamic parameter, the criterion for the spontaneity of any process is2022Entropy and Second law of thermodynamics
  8. 8The value of for a reaction is (Given : , and ;2021Third law of thermodynamics
  9. 9IfC(s) and , then heat of formation of is:2021Laws of Thermochemistry and Enthalpy Change
  10. 10The work done in ergs for the reversible expansion of one mole of an ideal gas from a volume of 10 litres to 20 litres at is2019First Law and Basic Fundamentals of Thermodynamics
  11. 11In a closed insulated container, a liquid is stirred with a paddle to increase its temperature. In this process, which of the following is t2019First Law and Basic Fundamentals of Thermodynamics
  12. 12For the reaction What is the value of free energy change at for the reaction ?2019Third law of thermodynamics
  13. 13Calculate the entropy change in melting 1 mole of ice at mole-2019Entropy and Second law of thermodynamics
  14. 14For the process bar, , the correct set of thermodynamic parameters is2018Entropy and Second law of thermodynamics
  15. 15Calculate enthalpy change for the change , given that2018Laws of Thermochemistry and Enthalpy Change
  16. 16The values of and for the reaction, (graphite) are and , respectively. This reaction will be spontaneous at2018Third law of thermodynamics
  17. 17Standard entropies of and are 60 , 30 and respectively. For the reaction to be at equilibrium, the temperature should be:2017Entropy and Second law of thermodynamics
  18. 18Consider the reaction : carried out at constant temperature and pressure. If and are the enthalpy and internal energy changes for the reacti2017Laws of Thermochemistry and Enthalpy Change
  19. 19A certain reaction is non spontaneous at . The entropy change during the reaction is 121 . Is the reaction is endothermic or exothermic ? Th2017Laws of Thermochemistry and Enthalpy Change
  20. 20One mole of an ideal gas at is expanded isothermally from an initial volume of 1 litre to 10 litres. Then (cal ) for this process is : cal2016Entropy and Second law of thermodynamics
  21. 21For a reaction the activation energy of the forward reaction is . The activation energy of the backward reaction will be2016First Law and Basic Fundamentals of Thermodynamics
  22. 22Standard entropy of and are 60,40 and , respectively. For the reaction, , to be at equilibrium, the temperature will be2016Third law of thermodynamics
  23. 23The enthalpy change for a given reaction at 298 is . For the reaction to be spontaneous at , the entropy change at that temperature2016Third law of thermodynamics
  24. 24A plot of against (abscissa) is expected to be a straight line with intercept on ordinate axis equal to2016Third law of thermodynamics
  25. 25For the given reaction, The value of free energy of formation for the ion , therefore will be2015Third law of thermodynamics
  26. 26The standard molar heat of formation of ethane, and water (1) are respectively and . The standard molar heat of combustion of ethane will be2014Laws of Thermochemistry and Enthalpy Change
  27. 27When 1 mole of occupying volume at is expanded under adiabatic condition, temperature falls to . Hence,final volume is2013First Law and Basic Fundamentals of Thermodynamics
  28. 28If for the cell reaction, Entropy change is , then temperature coefficient of the emf of a cell is2013Third law of thermodynamics
  29. 29Match List I (Equations) with List II (Types of process) and select the correct option. Codes:2012Third law of thermodynamics
  30. 30Consider the following processes For will be2012Laws of Thermochemistry and Enthalpy Change
  31. 31What is the value of electron gain enthalpy of if of ?2012Laws of Thermochemistry and Enthalpy Change
  32. 32Heat of formation, of an explosive compound like is2011Laws of Thermochemistry and Enthalpy Change
  33. 33For the reaction, at constant temperature, is2011Laws of Thermochemistry and Enthalpy Change
  34. 34The favourable conditions for a spontaneous reaction are2011Third law of thermodynamics
  35. 35Enthalpy of a compound is equal to its2010Laws of Thermochemistry and Enthalpy Change
  36. 36For which one of the following reactions will there be a positive2010Entropy and Second law of thermodynamics
  37. 37Given that , express the bond energy in .2009Laws of Thermochemistry and Enthalpy Change
  38. 38For the following cell reaction, of the cell is2009Third law of thermodynamics
  39. 39Calculate for the reaction, given the following: (A) (B) (C)2009Laws of Thermochemistry and Enthalpy Change
  40. 40The standard free energy change of a reaction is at . Calculate the equilibrium constant in2008Third law of thermodynamics
  41. 41If an endothermic reaction occurs spontaneously at constant temperature and , then which of the following is true ?2008Entropy and Second law of thermodynamics
  42. 42A spontaneous process is one in which the system suffers :2008Entropy and Second law of thermodynamics
  43. 43When a solid melts reversibly2007Entropy and Second law of thermodynamics
  44. 44Enthalpy is equal to2007Laws of Thermochemistry and Enthalpy Change
  45. 45Condition for spontaneity in an isothermal process is2007Third law of thermodynamics
  46. 46Given: ; The heat of formation of acetylene is2007Laws of Thermochemistry and Enthalpy Change
  47. 47When ideal gas expands in vacuum, the work done by the gas is equal to2006First Law and Basic Fundamentals of Thermodynamics
  48. 486 moles of an ideal gas expand isothermally and reversibly from a volume of 1 litre to a volume of 10 litres at . What is the maximum work d2006First Law and Basic Fundamentals of Thermodynamics

Frequently Asked Questions

1.How many questions are available for Thermodynamics (C)?

This chapter includes 48 questions compiled from VITEEE papers spanning 2006 to 2024.

2.Are these questions only from VITEEE, or from other exams too?

These are VITEEE questions specifically for the Thermodynamics (C) chapter. Questions from other exams like JEE Main or NTA Abhyas (JEE Main) are organised separately under their respective exam sections.

3.Is Thermodynamics (C) an important chapter for VITEEE Chemistry?

Thermodynamics (C) has appeared in 18 of the 18 years of VITEEE papers covered here, with 48 questions across 18 papers - about 3 per paper it appears in.

4.What is the difficulty level of Thermodynamics (C) questions in VITEEE?

Of the 48 questions analysed for this chapter, 46% are easy, 42% moderate and 13% tough. 2016 had the most, with 5 questions.

5.Which topics in Thermodynamics (C) should I focus on?

These topics have carried the most weightage in Thermodynamics (C):

  • Third law of thermodynamics - 16 questions (33%)
  • Laws of Thermochemistry and Enthalpy Change - 15 questions (31%)
  • Entropy and Second law of thermodynamics - 11 questions (23%)
  • Laws of Thermochemistry and Enthalpy Change has produced the most tough questions (4).
6.Is Thermodynamics (C)'s weightage in VITEEE going up or down?

Across all 18 papers analysed, Thermodynamics (C) has averaged about 2.7 questions per paper. In the last three years (2022–2024), that average has stayed about the same, at about 2.3 questions per paper. Use the year-wise numbers on this page for the exact trend before you decide how much time to give it.