Heat and Thermodynamics PYQs - Last 5 Years
JEE Advanced / Physics / Mechanics / 20 recent questions
PhysicsMechanics2022-2026
Practice 20 JEE Advanced 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.
20
PYQs on Page
Physics / Mechanics
2022-2026
Year Range
Based on indexed question metadata
20
Last 5 Years
2022-2026
20
Last 10 Years
2017-2026
Recent Year Trend
2022
2023
2024
2025
2026Latest year
20227 max PYQs/year2026
Question Types
20PYQs
INTEGER55%
MCQ25%
MCQM20%
Difficulty Mix
#1 Medium14
#2 Hard6
20 in last 5 years20 in last 10 years
Last 5 Years Heat and Thermodynamics Questions
Showing 20 of 20 filtered questions.
1Heat And Thermodynamics
Ten moles of an ideal monoatomic gas, initially in state $\boldsymbol{a}$ at atmospheric pressure and temperature $T_a=27^{\circ} \mathrm{C}$, is enclosed in a metal cylinder of volume $V_0$ fitted with a frictionless piston. The gas is sud...
MCQM+4 / -12026
2Heat And Thermodynamics
As shown in the figure, an insulated container is fitted with a thermally conducting but immovable partition ($P_1$) and a freely movable but thermally insulated piston ($P_2$). The partition $P_1$ with thermal conductivity $K$, cross secti...
INTEGER+4 / -02026
3Heat And Thermodynamics
As shown in the figure, five Carnot engines, each with efficiency $\eta$ and same number of cycles per unit time, are operating between six heat reservoirs. The amount of heat released per cycle by one engine is completely absorbed by the n...
INTEGER+4 / -02026
4Heat And Thermodynamics
A quasi-static cycle of a monoatomic ideal gas contains an isothermal process $(ab)$, followed by an isochoric process $(bc)$ and an adiabatic process $(ca)$ as shown in the figure. The volumes of the gas are $V_1$ and $V_2$ at $a$ and $b$,...
MCQM+4 / -12026
5Heat And Thermodynamics
The left and right compartments of a thermally isolated container of length $L$ are separated by a thermally conducting, movable piston of area $A$. The left and right compartments are filled with $\frac{3}{2}$ and 1 moles of an ideal gas, ...
INTEGER+4 / -02025
6Heat And Thermodynamics
An ideal monatomic gas of $n$ moles is taken through a cycle $W X Y Z W$ consisting of consecutive adiabatic and isobaric quasi-static processes, as shown in the schematic $V-T$ diagram. The volume of the gas at $W, X$ and $Y$ points are, $...
INTEGER+4 / -02025
7Heat And Thermodynamics
The efficiency of a Carnot engine operating with a hot reservoir kept at a temperature of 1000 K is 0.4 . It extracts 150 J of heat per cycle from the hot reservoir. The work extracted from this engine is being fully used to run a heat pump...
MCQM+4 / -22025
8Heat And Thermodynamics
Two identical plates P and Q , radiating as perfect black bodies, are kept in vacuum at constant absolute temperatures $\mathrm{T}_{\mathrm{P}}$ and $\mathrm{T}_{\mathrm{Q}}$, respectively, with $\mathrm{T}_{\mathrm{Q}}<\mathrm{T}_{\mathrm{...
INTEGER+4 / -02025
9Heat And Thermodynamics
A spherical soap bubble inside an air chamber at pressure $P_0=10^5 \mathrm{~Pa}$ has a certain radius so that the excess pressure inside the bubble is $\Delta P=144 \mathrm{~Pa}$. Now, the chamber pressure is reduced to $8 P_0 / 27$ so tha...
INTEGER+4 / -02024
10Heat And Thermodynamics
One mole of a monatomic ideal gas undergoes the cyclic process $\mathrm{J} \rightarrow \mathrm{K} \rightarrow \mathrm{L} \rightarrow \mathrm{M} \rightarrow \mathrm{J}$, as shown in the P-T diagram.
Match the quantities mentioned in List-...
Match the quantities mentioned in List-...
MCQ+3 / -12024
11Heat And Thermodynamics
The specific heat capacity of a substance is temperature dependent and is given by the formula $C=k T$, where $k$ is a constant of suitable dimensions in SI units, and $T$ is the absolute temperature. If the heat required to raise the tempe...
INTEGER+4 / -02024
12Heat And Thermodynamics
When the chimney is closed using a cap at the top, a pressure difference $\Delta P$ develops between the top and the bottom surfaces of the cap. If the changes in the temperature and density of the hot air, due to the stoppage of air flow, ...
INTEGER+3 / -02023
13Heat And Thermodynamics
Considering the air flow to be streamline, the steady mass flow rate of air exiting the chimney is _________ $\mathrm{gm} \mathrm{s}^{-1}$.
INTEGER+3 / -02023
14Heat And Thermodynamics
One mole of an ideal gas undergoes two different cyclic processes I and II, as shown in the $P-V$ diagrams below. In cycle I, processes $a, b, c$ and $d$ are isobaric, isothermal, isobaric and isochoric, respectively. In cycle II, processes...
INTEGER+4 / -02023
15Heat And Thermodynamics
An ideal gas is in thermodynamic equilibrium. The number of degrees of freedom of a molecule of the gas is $n$. The internal energy of one mole of the gas is $U_n$ and the speed of sound in the gas is $\mathrm{v}_n$. At a fixed temperature ...
MCQ+3 / -12023
16Heat And Thermodynamics
Match the temperature of a black body given in List-I with an appropriate statement in List-II, and choose the correct option.
[Given: Wien's constant as $2.9 \times 10^{-3} \mathrm{~m}-\mathrm{K}$ and $\frac{h c}{e}=1.24 \times 10^{-6} \ma...
[Given: Wien's constant as $2.9 \times 10^{-3} \mathrm{~m}-\mathrm{K}$ and $\frac{h c}{e}=1.24 \times 10^{-6} \ma...
MCQ+3 / -12023
17Heat And Thermodynamics
A closed container contains a homogeneous mixture of two moles of an ideal monatomic gas $(\gamma=5 / 3)$ and one mole of an ideal diatomic gas $(\gamma=7 / 5)$. Here, $\gamma$ is the ratio of the specific heats at constant pressure and con...
INTEGER+4 / -02023
18Heat And Thermodynamics
One mole of an ideal gas expands adiabatically from an initial state $\left(T_{\mathrm{A}}, V_0\right)$ to final state $\left(T_{\mathrm{f}}, 5 V_0\right)$. Another mole of the same gas expands isothermally from a different initial state $\...
MCQ+3 / -12023
19Heat And Thermodynamics
In the given $P-V$ diagram, a monoatomic gas $\left(\gamma=\frac{5}{3}\right)$ is first compressed adiabatically from state $A$ to state $B$. Then it expands isothermally from state $B$ to state $C$. [Given: $\left(\frac{1}{3}\right)^{0.6} ...
MCQM+4 / -22022
20Heat And Thermodynamics
List I describes thermodynamic processes in four different systems. List II gives the magnitudes (either exactly or as a close approximation) of possible changes in the internal energy of the system due to the process.
.tg {border-collap...
.tg {border-collap...
MCQ+3 / -12022