Thermodynamics

54 topics, ranked by how often each is asked.

Practise ThermodynamicsBrowse all questions
  • 82 questions
  • 36 papers
  • 4.66% of Chemistry

Topics

The squares are the last ten exam years: filled means it was asked that year.

Topics

54 topics · 82 questions
  1. 1Enthalpy Changes and Reaction Energy Profiles1.2%1 questionPractise Enthalpy Changes and Reaction Energy Profiles
  2. 2Hess's Law and Thermochemical Calculations1.2%1 questionPractise Hess's Law and Thermochemical Calculations
  3. 3Entropy Change in Physical and Chemical Processes1.2%1 questionPractise Entropy Change in Physical and Chemical Processes
  4. 4Work Done in Reversible Isothermal Expansion of Ideal Gas1.2%1 questionPractise Work Done in Reversible Isothermal Expansion of Ideal Gas
  5. 5Isothermal, Isochoric, Isobaric and Adiabatic Processes1.2%1 questionPractise Isothermal, Isochoric, Isobaric and Adiabatic Processes
  6. 6Enthalpy Change and Internal Energy Change1.2%1 questionPractise Enthalpy Change and Internal Energy Change
  7. 7Work Done in Isothermal and Adiabatic Processes1.2%1 questionPractise Work Done in Isothermal and Adiabatic Processes
  8. 8Heat Capacity – Relation between Cp and Cv1.2%1 questionPractise Heat Capacity – Relation between Cp and Cv
  9. 9Second Law – Entropy of Irreversible Processes1.2%1 questionPractise Second Law – Entropy of Irreversible Processes
  10. 10Enthalpy and Entropy Changes2.4%2 questionsPractise Enthalpy and Entropy Changes
  11. 11Thermodynamic Processes – Free Expansion1.2%1 questionPractise Thermodynamic Processes – Free Expansion
  12. 12Work Done in Expansion against Constant Pressure1.2%1 questionPractise Work Done in Expansion against Constant Pressure
  13. 13Entropy and Spontaneity2.4%2 questionsPractise Entropy and Spontaneity
  14. 14First law of thermodynamics4.9%4 questionsPractise First law of thermodynamics
  15. 15Gibbs free energy and spontaneity ($\Delta H$ from $\Delta U$ for gaseous reactions)1.2%1 questionPractise Gibbs free energy and spontaneity ($\Delta H$ from $\Delta U$ for gaseous reactions)
  16. 16Free expansion of an ideal gas into vacuum1.2%1 questionPractise Free expansion of an ideal gas into vacuum
  17. 17Sign conventions for endothermic and exothermic reactions1.2%1 questionPractise Sign conventions for endothermic and exothermic reactions
  18. 18Bond enthalpy values1.2%1 questionPractise Bond enthalpy values
  19. 19Relation between enthalpy change and internal energy change1.2%1 questionPractise Relation between enthalpy change and internal energy change
  20. 20Bond enthalpy calculations1.2%1 questionPractise Bond enthalpy calculations
  21. 21Gibbs free energy and spontaneity1.2%1 questionPractise Gibbs free energy and spontaneity
  22. 22Enthalpy change for decomposition (reverse) reaction1.2%1 questionPractise Enthalpy change for decomposition (reverse) reaction
  23. 23Internal energy change in isothermal process1.2%1 questionPractise Internal energy change in isothermal process
  24. 24Work done in irreversible expansion1.2%1 questionPractise Work done in irreversible expansion
  25. 25Isothermal and adiabatic processes1.2%1 questionPractise Isothermal and adiabatic processes
  26. 26Entropy change in free expansion1.2%1 questionPractise Entropy change in free expansion
  27. 27Work in isothermal and adiabatic processes - Carnot cycle1.2%1 questionPractise Work in isothermal and adiabatic processes - Carnot cycle
  28. 28Gibbs energy and equilibrium4.9%4 questionsPractise Gibbs energy and equilibrium
  29. 29Bond enthalpy and enthalpy of formation1.2%1 questionPractise Bond enthalpy and enthalpy of formation
  30. 30First law – work in irreversible adiabatic expansion1.2%1 questionPractise First law – work in irreversible adiabatic expansion
  31. 31Gibbs energy and spontaneity9.8%8 questionsPractise Gibbs energy and spontaneity
  32. 32Clausius–Clapeyron equation1.2%1 questionPractise Clausius–Clapeyron equation
  33. 33Entropy change in isothermal process1.2%1 questionPractise Entropy change in isothermal process
  34. 34Enthalpy of formation2.4%2 questionsPractise Enthalpy of formation
  35. 35Gibbs energy2.4%2 questionsPractise Gibbs energy
  36. 36Entropy3.7%3 questionsPractise Entropy
  37. 37Enthalpy and internal energy1.2%1 questionPractise Enthalpy and internal energy
  38. 38Hess's law4.9%4 questionsPractise Hess's law
  39. 39Bond enthalpy4.9%4 questionsPractise Bond enthalpy
  40. 40Work in thermodynamics1.2%1 questionPractise Work in thermodynamics
  41. 41Bond Enthalpy and Enthalpy of Reaction1.2%1 questionPractise Bond Enthalpy and Enthalpy of Reaction
  42. 42State Functions and Path Functions1.2%1 questionPractise State Functions and Path Functions
  43. 43Relation Between Enthalpy and Internal Energy3.7%3 questionsPractise Relation Between Enthalpy and Internal Energy
  44. 44Resonance Energy1.2%1 questionPractise Resonance Energy
  45. 45Enthalpy of Neutralisation1.2%1 questionPractise Enthalpy of Neutralisation
  46. 46Gibbs Energy Change1.2%1 questionPractise Gibbs Energy Change
  47. 47Work in Irreversible Expansion1.2%1 questionPractise Work in Irreversible Expansion
  48. 48Gibbs Energy and Pressure-Volume Work1.2%1 questionPractise Gibbs Energy and Pressure-Volume Work
  49. 49Entropy Change in Phase Transition2.4%2 questionsPractise Entropy Change in Phase Transition
  50. 50Standard Enthalpy of Formation1.2%1 questionPractise Standard Enthalpy of Formation
  51. 51Heat Capacity1.2%1 questionPractise Heat Capacity
  52. 52Entropy Change in Isothermal Expansion1.2%1 questionPractise Entropy Change in Isothermal Expansion
  53. 53Enthalpy of Reaction from Enthalpies of Formation1.2%1 questionPractise Enthalpy of Reaction from Enthalpies of Formation
  54. 54Hess's Law for Gibbs Energy1.2%1 questionPractise Hess's Law for Gibbs Energy

Questions per paper

Asked in 16 of the last 16 papers (2017–2026).

  1. 2026: 2 questions
  2. 2026 Re-NEET: 3 questions
  3. 2025: 2 questions
  4. 2024: 3 questions
  5. 2024 Re-NEET: 4 questions
  6. 2023: 1 question
  7. 2023 Manipur: 1 question
  8. 2022: 1 question
  9. 2022 Phase 2: 1 question
  10. 2021: 2 questions
  11. 2020: 2 questions
  12. 2020 Phase-2: 2 questions
  13. 2019: 2 questions
  14. 2019 Odisha: 2 questions
  15. 2018: 1 question
  16. 2017: 2 questions

Concepts tested

  • Entropy of fusion 3
  • Equilibrium temperature 3
  • Combining thermochemical equations 2
  • Definition of standard enthalpy of formation 2
  • Enthalpy of reaction from bond energies 2
  • Free expansion 2
  • Adiabatic stirring work
  • adiabatic-expansion-internal-energy
  • Bond dissociation energy
  • Bond enthalpy calculations
  • Bond enthalpy from enthalpy of formation
  • Bond enthalpy values
  • bond-enthalpy-calculation
  • Calculating work done using w = -2.303 nRT log(P1/P2)
  • Change in moles of gas
  • clausius-clapeyron
  • Combining Gibbs energies
  • Comparing heats of combustion