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JEE · NEET Previous Year Question

$A diatomic gas, having C_{p} = \frac{7}{2} R and C_{v} = \frac{5}{2} R, is heated at constant pressure. The ratio dU : dQ : dW$

Topic: JEE PYQ

Answer: B. Full step-by-step solution below.

A $03 : 07 : 02$
B $05 : 07 : 02$
C $05 : 07 : 03$
D $03 : 05 : 02$

Correct answer: B

Solution

(b) JEE Main 2021 C_{p} = \frac{7}{2} R C_{v} = \frac{5}{2} R d U = n C_{v} dT d Q = n C_{p} dT d W = nRdT d U : dQ : dW C_{v} : C_{p} : R \frac{5}{2} R : \frac{7}{2} R : R 5 : 7 : 2

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