JEE Mains · Physics · STD 11 - 12 . kinetic theory of gases
A diatomic gas \((\gamma=1.4)\) does \(100 \mathrm{~J}\) of work in an isobaric expansion. The heat given to the gas is _______.
- A \(350 \mathrm{~J}\)
- B \(490 \mathrm{~J}\)
- C \(150 \mathrm{~J}\)
- D \(250 \mathrm{~J}\)
Answer & Solution
Correct Answer
(A) \(350 \mathrm{~J}\)
Step-by-step Solution
Detailed explanation
For Isobaric process \(\mathrm{w}=\mathrm{P} \Delta \mathrm{v}=\mathrm{nR} \Delta \mathrm{T}=100 \mathrm{~J}\) \(\mathrm{Q}=\Delta \mathrm{u}+\mathrm{w}\) \(\Delta \mathrm{Q}=\frac{\mathrm{F}}{2} \mathrm{nR} \Delta \mathrm{T}+\mathrm{nR} \Delta \mathrm{T}\)…
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