An ideal gas is made to undergo a cycle depicted by the $p-V$ diagram given below. The curved line from $A$ to $B$ is an adiabat.Then,
KVPY 2010, Medium
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(a)
$A$ to $B$ is an expansion process and $B$ to $A$ is adiabatic compression.
So, heat is absorbed in process $A$ to $B$ and is released in process $B$ to $A$.
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