Question:medium

The ratio of the work done, change in internal energy and heat absorbed when a diatomic gas expands at constant pressure is

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For any ideal gas process, the ratio $W : \Delta U : Q_p$ in an isobaric expansion is always $ (C_p - C_v) : C_v : C_p $. For a diatomic gas, this is $R : \frac{5}{2}R : \frac{7}{2}R$, which simplifies to $2:5:7$.

Updated On: Mar 30, 2026

2:3:5
7:5:2
5:3:2
2:5:7

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The Correct Option is D

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The ratio of the work done, change in internal energy and heat absorbed when a diatomic gas expands at constant pressure is

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The Correct Option is D

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