Heat and Thermodynamics PYQs - Last 5 Years
IAT (IISER) / Physics / Mechanics / 7 recent questions
PhysicsMechanics2022-2026
Practice 7 IAT (IISER) Physics questions from Heat and Thermodynamics. Use the year-wise and type-wise breakdown to prioritize recent PYQs, then continue into the question list below.
7
PYQs on Page
Physics / Mechanics
2022-2026
Year Range
Based on indexed question metadata
7
Last 5 Years
2022-2026
7
Last 10 Years
2017-2026
Recent Year Trend
2022
2023
2024
2025
2026Latest year
20222 max PYQs/year2026
Question Types
7PYQs
MCQ100%
Difficulty Mix
#1 Unknown7
7 in last 5 years7 in last 10 years
Last 5 Years Heat and Thermodynamics Questions
Showing 7 of 7 filtered questions.
1Heat And Thermodynamics
A jar is filled with two monoatomic non-interacting gases $A$ and $B$ with total masses $M_A$ and $M_B$, respectively. The molar mass of $A$ is double the molar mass of $B$. If the jar is kept at temperature $T$, what is the ratio of the to...
MCQ+4 / -12026
2Heat And Thermodynamics
Consider two Carnot engines of efficiencies $\eta_1$ and $\eta_2$. The first engine absorbs heat $Q_1$ from a heat reservoir $A$ and releases heat $Q_2$ to a heat reservoir $B$. The second engine takes heat $Q_2$ from $B$ and releases heat ...
MCQ+4 / -12026
3Heat And Thermodynamics
A metallic cube initially kept at a temperature $T$ is emitting black body radiation with a power $P$ (energy emitted per unit time). If $T$ is increased by $1 \%$, the power being radiated increases by $4.5 \%$. What is the approximate per...
MCQ+4 / -12025
4Heat And Thermodynamics
One mole of an ideal gas of volume $V$ and temperature $T$ is allowed to expand adiabatically to volume $2 V$ while doing no external work. The universal gas constant is $R$. What is the pressure of the gas after expansion?
MCQ+4 / -12024
5Heat And Thermodynamics
Two identical boxes contain the same ideal gas. Let $\left(n_1, \lambda_1, T_1\right)$ and $\left(n_2, \lambda_2, T_2\right)$ be the number density, mean free path and temperature of the gas in the first and the second box, respectively. On...
MCQ+4 / -12024
6Heat And Thermodynamics
57. Consider a Carnot heat engine operating between a heat reservoir at temperature 600 K , and an external atmosphere at temperature 300 K . In one cycle, 1000 kJ of heat is extracted from the heat reservoir, and the associated work is inp...
MCQ+4 / -12023
7Heat And Thermodynamics
A monoatomic ideal gas at pressure $P$ and volume $V$ is first adiabatically compressed to volume $V / 8$ and then is allowed to expand isothermally back to its original volume. What is the final pressure of the gas?
MCQ+4 / -12022