UPSC Combined Geo-Scientist, Mains · 2017 · Mains Paper II
Q2. Difference of heat capacities
Question
Derive Cₚ-CV=[(∂ U/∂ V)_(T,n)+p](∂ V/∂ T)_(p,n). Find it for a gas obeying p(V-nb)=nRT.
Answer in brief
For the stated equation of state, Cₚ-CV=nR.
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