MHT CET PYQs for Thermodynamics with Solutions: Practice MHT CET Previous Year Questions

Thermodynamics is a Class 12 chapter in the Physics section of the MHT CET for candidates who are preparing for the PCM (Physics, Chemistry, and Mathematics).

The key topics covered in Thermodynamics PYQs are:

Adiabatic compression of a gas
Final pressure and temperature after compression
Carnot engine and its efficiency
Isothermal expansion
p-V diagram of a cyclic process

Practising Thermodynamics MHT CET PYQ helps candidates to understand question pattern, improve calculation speed, and identify concepts which were asked in previous exams.

Based on chapter-wise analysis of the MHT CET Physics paper, you can get less than 1 mark per paper by covering Thermodynamics. The chapter recorded 14 questions across the 80 shifts in the data, and 4 of them came in the 2025 and 2026 papers, where it contributed about 0.2% per shift.

MHT CET Thermodynamics Chapter: Question Count, Marks and Weightage:

0.17 Average questions per shift (2018-2026)	4 Questions in the 2025 and 2026 papers (33 shifts)
14 Questions in the PDF (2021-2025)	0.3% Estimated Physics paper weightage (0.2% in 2025-2026)

The PDF holds 14 questions from MHT CET 2025 to 2021, newest first, each with its exam date and shift. Options are as printed and answer keys are not included.

Thermodynamics PYQ Statistics (2022-2026)

The table below shows the number of questions asked in MHT CET Thermodynamics PYQs. Every shift has 50 Physics questions, so the last column is the average per shift divided by 50.

Year	Total Questions (across shifts)	Shifts in the Data	Average per Shift	Weightage (out of 50 Physics Qs)
2026	0	16	0.00	0.0%
2025	4	17	0.24	0.5%
2024	3	18	0.17	0.3%
2023	3	12	0.25	0.5%
2022	1	1	1.00	2.0%

The 2018 to 2021 papers in the PDF add 3 more questions: 2021 had 3, 2020 had none, 2019 had none, 2018 had none.

MHT CET Thermodynamics Important Questions: Based on the Last 5 Years

The major types of questions asked from Thermodynamics in MHT CET cover the following topics:

Topic	Questions in the PDF	Questions in 2022-2026	Average per Shift (2022-2026)
Carnot engine, efficiency and the p-V cycle	3	3	0.05
Adiabatic compression: final pressure, volume or temperature	11	8	0.12

Pair PYQs with Other Study Material for MHT CET 2027

Click on the link to practise problems and time management skills:

Resource	Link
MHT CET Sample Paper	Check Here
MHT CET Mock Test	Check Here

Question Style in MHT CET Thermodynamics PYQs

Every question in this PDF is a single-correct MCQ. Most of them (11 of 14) ask for the final pressure, volume or temperature of a gas compressed adiabatically.

Question Style	What it Tests
Adiabatic compression	A diatomic gas compressed to 1/32 of its volume, and a gas at N.T.P. compressed suddenly to one-fourth of its original volume with γ = 1.5
Rise in temperature	An ideal gas at 27 °C compressed adiabatically to 8/27 of its volume with γ = 5/3, and a monoatomic gas compressed to one-eighth of its volume
Carnot engine	The efficiency of a Carnot engine when the sink temperature is reduced by 62 K, and the work from a Carnot cycle operating between 600 K and 300 K
Relations in adiabatic change	The relation of pressure and temperature of a diatomic gas, and the temperature of a system compressed adiabatically
Cyclic process	A p-V diagram of a fixed mass of an ideal gas undergoing a cyclic process

How to Use the Thermodynamics PYQ PDF for MHT CET

Start with the 2025 and 2026 papers first, because they hold 4 of the 14 questions.
Learn PVᵞ = constant and TVᵞ⁻¹ = constant, and substitute the volume ratio directly.
For Carnot questions, write η = 1 - T₂/T₁ with the temperatures in kelvin.
Solve year-wise PYQs by timing yourself, as time management is crucial.
Re-attempt only the questions you got wrong, and note which formula or step you missed.

Video: Thermodynamics PYQs and MCQs

Source: Physics Paathshaala

Thermodynamics PYQ for MHT CET Physics FAQs

Ques. How many questions come from Thermodynamics every year?

Ans. In this PDF, the questions are 4 from 2025, 3 from 2024, 3 from 2023, 1 from 2022 and 3 from 2021. In 2025 and 2026 together the chapter had 4 questions across 33 shifts, about 0.12 per shift.

Ques. Which topics are asked most frequently in MHT CET Thermodynamics?

Ans. Adiabatic compression: final pressure, volume or temperature is the largest group with 11 of the 14 questions, about 79%.

Ques. What kind of questions are asked from Thermodynamics?

Ans. Single-correct MCQs, mostly numerical. Common ones ask for the final pressure or temperature of a gas compressed adiabatically, or the efficiency and work of a Carnot engine.

Ques. What is the best way to practise Thermodynamics PYQs?

Ans. First solve the 2025 and 2026 questions completely, then the older ones, and finally re-attempt the questions you got wrong.

Ques. Can I score full marks from Thermodynamics?

Ans. In 2025 and 2026 together the chapter had 4 questions across 33 shifts. Learning the adiabatic relations and the Carnot efficiency is enough to secure it. Each Physics question in MHT CET is worth 1 mark.

Ques. Does the Thermodynamics PYQ PDF include solutions?

Ans. No. The PDF contains the questions with their exam date and shift, without answer keys or solutions.

MHT CET PYQs for Thermodynamics with Solutions: Practice MHT CET Previous Year Questions

Thermodynamics PYQ Statistics (2022-2026)

MHT CET Thermodynamics Important Questions: Based on the Last 5 Years

Pair PYQs with Other Study Material for MHT CET 2027

Question Style in MHT CET Thermodynamics PYQs

How to Use the Thermodynamics PYQ PDF for MHT CET

Video: Thermodynamics PYQs and MCQs

Thermodynamics PYQ for MHT CET Physics FAQs

1.
Which among the following equations represents the first law of thermodynamics under isobaric conditions ?

3.
In adiabatic compression, which of the following is true?

4.
The enthalpy of vaporization of water is 40.79 kJ/mol. How much heat is required to vaporize 2 moles of water at its boiling point?

5.
A gas absorbs \( 100 \, \text{J} \) of heat while performing \( 40 \, \text{J} \) of work on its surroundings. Calculate the change in internal energy of the gas.

6.
A gas undergoes a change in which its pressure ' $P$ ' and volume ' $V$ ' are related as $PV^n = \text{constant}$, where $n$ is a constant. If the specific heat of the gas in this change is zero, then the value of $n$ is ($\gamma = \text{adiabatic ratio}$)}

7.
A gas is compressed from an initial volume of 10 L to 5 L. The pressure during the compression is constant at 2 atm. Calculate the work done on the gas.

8.
Under isothermal conditions a gas expands from 0.2 dm³ to 0.8 dm³ against a constant pressure of 2 bar at 300 K. Find the work done by the gas.(1 dm³bar = 100 J)

9.
Which is an adiabatic process?

10.
Identify the equation in which change in enthalpy is equal to change in internal energy

11.
In which thermodynamic process, there is no exchange of heat between the system and surroundings?

12.
A cylinder of fixed capacity \( 67.2 \, \mathrm{L} \) contains helium gas at STP. The amount of heat needed to raise the temperature of the gas in the cylinder by \( 20^\circ \mathrm{C} \) is:

13.
A gas expands from a volume of 2 m\(^3\) to a volume of 5 m\(^3\) at a constant pressure of \( 2 \times 10^5 \, \text{Pa} \). Calculate the work done by the gas.

15.
In an adiabatic expansion of a gas initial and final temperatures are T₁ and T₂ respectively then the change in internal energy of the gas is [R = gas constant, γ = adiabatic ratio]

Comments

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Thermodynamics PYQ Statistics (2022-2026)

MHT CET Thermodynamics Important Questions: Based on the Last 5 Years

Pair PYQs with Other Study Material for MHT CET 2027

Question Style in MHT CET Thermodynamics PYQs

How to Use the Thermodynamics PYQ PDF for MHT CET

Video: Thermodynamics PYQs and MCQs

Thermodynamics PYQ for MHT CET Physics FAQs

1.Which among the following equations represents the first law of thermodynamics under isobaric conditions ?

3.In adiabatic compression, which of the following is true?

4.The enthalpy of vaporization of water is 40.79 kJ/mol. How much heat is required to vaporize 2 moles of water at its boiling point?

5.A gas absorbs \( 100 \, \text{J} \) of heat while performing \( 40 \, \text{J} \) of work on its surroundings. Calculate the change in internal energy of the gas.

6.A gas undergoes a change in which its pressure ' $P$ ' and volume ' $V$ ' are related as $PV^n = \text{constant}$, where $n$ is a constant. If the specific heat of the gas in this change is zero, then the value of $n$ is ($\gamma = \text{adiabatic ratio}$)}

7.A gas is compressed from an initial volume of 10 L to 5 L. The pressure during the compression is constant at 2 atm. Calculate the work done on the gas.

8.Under isothermal conditions a gas expands from 0.2 dm3 to 0.8 dm3 against a constant pressure of 2 bar at 300 K. Find the work done by the gas.(1 dm3 bar = 100 J)

9.Which is an adiabatic process?

10.Identify the equation in which change in enthalpy is equal to change in internal energy

11.In which thermodynamic process, there is no exchange of heat between the system and surroundings?

12.A cylinder of fixed capacity \( 67.2 \, \mathrm{L} \) contains helium gas at STP. The amount of heat needed to raise the temperature of the gas in the cylinder by \( 20^\circ \mathrm{C} \) is:

13.A gas expands from a volume of 2 m\(^3\) to a volume of 5 m\(^3\) at a constant pressure of \( 2 \times 10^5 \, \text{Pa} \). Calculate the work done by the gas.

15.In an adiabatic expansion of a gas initial and final temperatures are T1 and T2 respectively then the change in internal energy of the gas is [R = gas constant, γ = adiabatic ratio]

Comments

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1.
Which among the following equations represents the first law of thermodynamics under isobaric conditions ?

3.
In adiabatic compression, which of the following is true?

4.
The enthalpy of vaporization of water is 40.79 kJ/mol. How much heat is required to vaporize 2 moles of water at its boiling point?

5.
A gas absorbs \( 100 \, \text{J} \) of heat while performing \( 40 \, \text{J} \) of work on its surroundings. Calculate the change in internal energy of the gas.

6.
A gas undergoes a change in which its pressure ' $P$ ' and volume ' $V$ ' are related as $PV^n = \text{constant}$, where $n$ is a constant. If the specific heat of the gas in this change is zero, then the value of $n$ is ($\gamma = \text{adiabatic ratio}$)}

7.
A gas is compressed from an initial volume of 10 L to 5 L. The pressure during the compression is constant at 2 atm. Calculate the work done on the gas.

8.
Under isothermal conditions a gas expands from 0.2 dm³ to 0.8 dm³ against a constant pressure of 2 bar at 300 K. Find the work done by the gas.(1 dm³bar = 100 J)

9.
Which is an adiabatic process?

10.
Identify the equation in which change in enthalpy is equal to change in internal energy

11.
In which thermodynamic process, there is no exchange of heat between the system and surroundings?

12.
A cylinder of fixed capacity \( 67.2 \, \mathrm{L} \) contains helium gas at STP. The amount of heat needed to raise the temperature of the gas in the cylinder by \( 20^\circ \mathrm{C} \) is:

13.
A gas expands from a volume of 2 m\(^3\) to a volume of 5 m\(^3\) at a constant pressure of \( 2 \times 10^5 \, \text{Pa} \). Calculate the work done by the gas.

15.
In an adiabatic expansion of a gas initial and final temperatures are T₁ and T₂ respectively then the change in internal energy of the gas is [R = gas constant, γ = adiabatic ratio]