JEE Main 2026 · 4 Apr · Shift 1 · Chemistry Q54

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ChemistrySingle correct+4 / -1Question 54 of 75

Given below are two statements:

Statement I: For an ideal gas, heat capacity at constant volume is always greater than the heat capacity at constant pressure.

Statement II: In a constant volume process, no work is produced and all the heat withdrawn goes into the chaotic motion and is reflected by a temperature increase of the ideal gas.

In the light of the above statements, choose the correct answer from the options given below

Both Statement I and Statement II are true

Both Statement I and Statement II are false

Statement I is true but Statement II is false

Statement I is false but Statement II is true

Answer and worked solution

Official answer: D

Statement I. $C_p=C_v+R>C_v$ for an ideal gas: false.

Statement II. At constant volume no work is done, so the heat goes entirely into internal energy (a temperature rise): true.

(D)

Topics:First law and enthalpy

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JEE Main 2026 · 4 Apr · Shift 1, Chemistry question 54