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Previous year question hub

Thermodynamics - Physical Chemistry - Chemistry Previous Year Questions

Practice Thermodynamics - Physical Chemistry - Chemistry previous year questions organised from real papers, with year-wise coverage and clear topic navigation.

3Papers
2Years
6Questions
1Topics

Thermodynamics question pattern

Every graph below is calculated only from this selection.

Questions by year

Year-wise coverage for Thermodynamics. Each bar uses a separate theme-derived color.

Difficulty distribution

How the classified questions are distributed by difficulty.

Not classified 6 100%

Question type distribution

MCQ, numerical, multiple-select and other formats found in these papers.

Multiple Choices 6 100%

Subject weightage

Top subjects by unique question coverage.

Chemistry
6 Qs

Most asked topics

Top topics across the included previous year papers.

Physical Chemistry
6 Qs

Subtopic coverage

Top subtopics inside this exact selection.

Thermodynamics
6 Qs

Paper coverage

Question coverage for the most populated papers. Every active PYP paper remains listed below.

MHT CET (PCB) 2025 9th April Evening Shift
3 Qs
MHT CET (PCB) 2024 22th April Evening Shift
2 Qs
MHT CET (PCB) 2024 22th April Morning Shift
1 Qs

Included previous year papers

Newest papers appear first. Sort by year, question coverage or name.

PaperYear / sessionQuestions in this viewOpen
MHT CET (PCB) 2025 9th April Evening Shift20253View paper
MHT CET (PCB) 2024 22th April Evening Shift20242View paper
MHT CET (PCB) 2024 22th April Morning Shift20241View paper

All Thermodynamics previous year questions

Practice every matching question in batches of 20, with every available option.

1
2024 · Chemistry · Physical Chemistry · Thermodynamics
MHT CET (PCB) 2024 22th April Evening Shift

One mole of a perfect gas expands isothermally and reversibly from $10 \mathrm{dm}^3$ to $20 \mathrm{dm}^3$ at 300 K . Find $\Delta \mathrm{U}, \mathrm{q}$ and work done respectively in the process. $\left(\mathrm{R}=8.3 \times 10^{-3} \mathrm{~kJ} \mathrm{~K}^{-1} \mathrm{~mol}^{-1}\right)$

A
$0.0 \mathrm{~kJ}, 1.726 \mathrm{~kJ},-1.726 \mathrm{~kJ}$
B
$0.0 \mathrm{~kJ},-17.48 \mathrm{~kJ},-17.48 \mathrm{~kJ}$
C
$-1.726 \mathrm{~kJ}, 0 \mathrm{~kJ}, 1.726 \mathrm{k}$
D
$0.0 \mathrm{~kJ}, 21.84 \mathrm{~kJ},-21.84 \mathrm{~kJ}$
Open complete paper
2
2024 · Chemistry · Physical Chemistry · Thermodynamics
MHT CET (PCB) 2024 22th April Evening Shift

Which of the following symbols represents heat of reaction at constant pressure?

A
$\Delta \mathrm{H}$
B
$\Delta S$
C
$\Delta \mathrm{U}$
D
$\Delta \mathrm{G}$
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3
2024 · Chemistry · Physical Chemistry · Thermodynamics
MHT CET (PCB) 2024 22th April Morning Shift

Which from following terms is explained by first law of thermodynamics?

A
Entropy
B
Free energy
C
Conservation of energy
D
Enthalpy
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4
2025 · Chemistry · Physical Chemistry · Thermodynamics
MHT CET (PCB) 2025 9th April Evening Shift

Which from following reactions performs highest + ve work at $25^{\circ} \mathrm{C}$ ?

A

$\mathrm{CH}_{4(\mathrm{~g})}+\mathrm{Cl}_{2(\mathrm{~g})} \longrightarrow \mathrm{CH}_3 \mathrm{Cl}_{(\mathrm{g})}+\mathrm{HCl}_{(\mathrm{g})}$

B

$3 \mathrm{H}_{2(\mathrm{~g})}+\mathrm{N}_{2(\mathrm{~g})} \longrightarrow 2 \mathrm{NH}_{3(\mathrm{~g})}$

C

$\mathrm{C}_2 \mathrm{H}_{2(\mathrm{~g})}+\frac{5}{2} \mathrm{O}_{2(\mathrm{~g})} \longrightarrow 2 \mathrm{CO}_{2(\mathrm{~g})}+\mathrm{H}_2 \mathrm{O}_{(l)}$

D

$2 \mathrm{C}_2 \mathrm{H}_{6(\mathrm{~g})}+7 \mathrm{O}_{2(\mathrm{~g})} \longrightarrow 4 \mathrm{CO}_{2(\mathrm{~g})}+6 \mathrm{H}_2 \mathrm{O}_{(\mathrm{l})}$

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5
2025 · Chemistry · Physical Chemistry · Thermodynamics
MHT CET (PCB) 2025 9th April Evening Shift

Calculate standard Gibbs energy for a certain reaction if $\Delta \mathrm{H}^{\circ}$ and $\Delta \mathrm{S}^{\circ}$ respectively are $219 \mathrm{~kJ} \mathrm{~mol}^{-1}$ and $-20 \mathrm{JK}^{-1}$.

A

$224.96 \mathrm{~kJ} \mathrm{~mol}^{-1}$

B

$112.48 \mathrm{~kJ} \mathrm{~mol}^{-1}$

C

$312.10 \mathrm{~kJ} \mathrm{~mol}^{-1}$

D

$426.24 \mathrm{~kJ} \mathrm{~mol}^{-1}$

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6
2025 · Chemistry · Physical Chemistry · Thermodynamics
MHT CET (PCB) 2025 9th April Evening Shift

Calculate the change in internal energy of the system if 15 kJ of work done on the surrounding and system releases 10 kJ of heat in a particular reaction.

A

15 kJ

B

10 kJ

C

-25 kJ

D

-15 kJ

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