Physics - Thermodynamics
Practise 23 MHT-CET (PCB) previous year questions on Thermodynamics, compiled from papers in 2026. Each question is pulled directly from the actual exam paper it appeared in, so you're practising in the exact style and difficulty MHT-CET (PCB) tests.
Thermodynamics has been asked in 1 of the 1 years of MHT-CET (PCB) papers analysed (2026), with 23 questions in all. 43% of them were easy, 57% moderate and 0% tough. Most of its questions came from 2026, with 23 questions that year. In 2026 it had 23 questions across 11 papers, about 2.1 per paper.
The chapter's 4 topics are not weighted equally: Thermodynamic Processes (14 questions, 61%), First Law of Thermodynamics (5 questions, 22%), and Heat Engine, Refrigerator andSecond Law of Thermodynamics (3 questions, 13%) have been asked the most.
- 1A gas for which is heated at constant pressure. The percentage of heat supplied used for external work is26 Apr, 2026 (M)First Law of Thermodynamics
- 2In thermodynamic processes, which one of the following statements is 'NOT' correct ?26 Apr, 2026 (M)Thermodynamic Processes
- 3Which of the following is NOT a correct equation for adiabatic process?25 Apr, 2026 (M)Thermodynamic Processes
- 4A gas is taken through a cycle , as shown in the figure. The net work done by the gas is25 Apr, 2026 (M)Thermodynamic Processes
- 5Identify the INCORRECT statement for isobaric process.25 Apr, 2026 (E)Thermodynamic Processes
- 6Let be the efficiency of a Carnot engine at and while is the efficiency at and . If , the value of is25 Apr, 2026 (E)Heat Engine, Refrigerator andSecond Law of Thermodynamics
- 7A mono-atomic ideal gas, initially at temperature is enclosed in a cylinder fitted with a frictionless piston. The gas is allowed to expand 24 Apr, 2026 (M)Thermodynamic Processes
- 8A gas for which is is heated at constant pressure. The percentage of heat supplied for external work is nearly24 Apr, 2026 (M)First Law of Thermodynamics
- 9The work done by an ideal gas during closed cycle as shown in figure is24 Apr, 2026 (E)Thermodynamic Processes
- 10Which of the following statements is NOT CORRECT? In an isothermal process, a. there is perfect thermal equilibrium with environment. b. the24 Apr, 2026 (E)Thermodynamic Processes
- 11An ideal mono-atomic gas is heated at constant pressure. The fraction of the total energy applied which increases the internal energy for th23 Apr, 2026 (M)First Law of Thermodynamics
- 12Carnot engine has an efficiency of . When the temperature of the sink is reduced by K, its efficiency is doubled. The temperature of the sou23 Apr, 2026 (M)Heat Engine, Refrigerator andSecond Law of Thermodynamics
- 13The second law of thermodynamics deals with the transfer of a. only work. b. momentum. c. heat. d. only pressure.23 Apr, 2026 (M)Heat Engine, Refrigerator andSecond Law of Thermodynamics
- 14One mole of an ideal gas in initial state A undergoes a cyclic process ABCA, as shown in the figure. Its pressure at A is . Choose the corre23 Apr, 2026 (E)Thermodynamic Processes
- 15A rigid diatomic ideal gas is compressed adiabatically to of its initial volume. If the initial temperature of the gas is (in kelvin) and th23 Apr, 2026 (E)Thermodynamic Processes
- 16If R is the universal gas constant then the amount of heat needed to raise the temperature of 3 moles of an ideal monoatomic gas from 273 K 22 Apr, 2026 (M)First Law of Thermodynamics
- 17The relation obeyed by a perfect gas during an adiabatic process is . The initial temperature of the gas is 'T'. When the gas is compressed 22 Apr, 2026 (M)Thermodynamic Processes
- 18For an isochoric process, which of the following statements is NOT true?22 Apr, 2026 (E)Thermodynamic Processes
- 19For the Carnot heat engine, if the temperature of the hot reservoir is increased, then efficiency of the Carnot engine22 Apr, 2026 (E)Heat Engine, Refrigerator and Second Law of Thermodynamics
- 20For a cyclic thermodynamic process21 Apr, 2026 (M)Thermodynamic Processes
- 21For an adiabatic process, choose the correct relation21 Apr, 2026 (M)Thermodynamic Processes
- 22Thermodynamic change in the system from state to is shown in the figure. The work done by the system is21 Apr, 2026 (E)First Law of Thermodynamics
- 23A monoatomic gas is compressed to th of its volume adiabatically. If its initial pressure is , then increase in the pressure will be21 Apr, 2026 (E)Thermodynamic Processes
Frequently Asked Questions
1.How many questions are available for Thermodynamics?
This chapter includes 23 questions compiled from MHT-CET (PCB) papers in 2026.
2.Are these questions only from MHT-CET (PCB), or from other exams too?
These are MHT-CET (PCB) questions specifically for the Thermodynamics chapter. Questions from other exams like NEET or AIIMS are organised separately under their respective exam sections.
3.Is Thermodynamics an important chapter for MHT-CET (PCB) Physics?
Thermodynamics has appeared in 1 of the 1 year of MHT-CET (PCB) papers covered here, with 23 questions across 11 papers - about 2 per paper it appears in.
4.What is the difficulty level of Thermodynamics questions in MHT-CET (PCB)?
Of the 23 questions analysed for this chapter, 43% are easy, 57% moderate and 0% tough. 2026 had the most, with 23 questions.
5.Which topics in Thermodynamics should I focus on?
These topics have carried the most weightage in Thermodynamics:
- Thermodynamic Processes - 14 questions (61%)
- First Law of Thermodynamics - 5 questions (22%)
- Heat Engine, Refrigerator andSecond Law of Thermodynamics - 3 questions (13%)
6.Is Thermodynamics's weightage in MHT-CET (PCB) going up or down?
Across all 11 papers analysed, Thermodynamics has averaged about 2.1 questions per paper. In 2026, that average has stayed about the same, at about 2.1 questions per paper. Use the year-wise numbers on this page for the exact trend before you decide how much time to give it.