Physics · 2025
JEE Main · 29 January 2025, Shift 2 · Q33
Given below are two statements. One is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A): With the increase in the…
Given below are two statements. One is labelled as Assertion (A) and the other is labelled as Reason (R).
Assertion (A) : With the increase in the pressure of an ideal gas, the volume falls off more rapidly in an isothermal process in comparison to the adiabatic process.
Reason (R) : In isothermal process, PV = constant, while in adiabatic process PV $\displaystyle { }^\gamma=$ constant. Here $\displaystyle \gamma$ is the ratio of specific heats, P is the pressure and V is the volume of the ideal gas.
In the light of the above statements, choose the correct answer from the options given below :
Official answer
From NTA’s final answer key for this paper.
(2)
Both (A) and (R) are true and (R) is the correct explanation of (A)
More from Thermodynamics
- The magnitude of heat exchanged by a system for the given cyclic process ABCA (as shown in figure) is (in SI unit):2025
- Match the LIST-I with LIST-II Choose the correct answer from the options given below:2025
- An ideal gas exists in a state with pressure P_0, volume V_0. It is isothermally expanded to 4 times of its initial volume (V_0), then isobarically…2025
- A diatomic gas (γ=1.4) does 100 J of work when it is expanded isobarically. Then the heat given to the gas ____ J.2026
- A Carnot engine (E) is working between two temperatures 473 K and 273 K. In a new system two engines - engine E_1 works between 473 K to 373 K and…2025
- Consider the following statements: A. Zeroth law of thermodynamics gives concept of temperature B. First law of thermodynamics gives concept of…2026
- A piston of mass M is hung from a massless spring whose restoring force law goes as F=-kx^3, where k is the spring constant of appropriate dimension.…2025
- A monoatomic gas having γ=5/3 is stored in a thermally insulated container and the gas is suddenly compressed to (1/8)^th of its initial volume. The…2025
JEE Main 2025 Physics question, with the answer from NTA’s final answer key. Where our answers come from.