JEE Main 2026 · 2 Apr · Shift 1 · Physics Q33

PhysicsSingle correct+4 / -1Question 33 of 75

Heat is supplied to a diatomic gas at constant pressure. Then the ratio of $\Delta Q:\Delta U:\Delta W$ is ________.

2:3:5

5:3:2

2:5:7

7:5:2

Answer and worked solution

Official answer: D

Diatomic gas at constant pressure. $\Delta Q=nC_p\Delta T=\frac72nR\Delta T$ , $\Delta U=\frac52nR\Delta T$ , $\Delta W=nR\Delta T$ .

Ratio $7:5:2$ .

(D)

Topics:Thermodynamic processes Specific heats of gases

JEE Main 2026 · 2 Apr · Shift 1, Physics question 33