Heat and Thermal ExpansionMedium
Question
The following are the P-V diagram for cyclic processes for a gas In which of these processes is heat absorbed by the gas ?
Options
A.

B.

C.

D.

Solution
Fig A : WA = +ve Fig B : WB = +ve
Fig C : WC = +ve Fig D : WD = -ve
∴ in process Fig - (D), heat is released.
Fig C : WC = +ve Fig D : WD = -ve
∴ in process Fig - (D), heat is released.
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