question_answer

An ideal gas is subjected to a cyclic process ABCD as depicted in the\[p-V\]diagram given below: Which of the following curves represents the equivalent cyclic process?

A)   

B)  

C)   

D)    

Correct Answer: A

Solution :

\[A\to B\to C\to D\to A\] is clockwise process. During \[A\to B,\] pressure is constant and \[B\to C,\] process follows \[P\propto \frac{1}{V},\] it means T is constant. During process \[C\to D,\], both p and V changes and process \[D\to A,\] follows \[P\propto \frac{1}{V},\] which means T is constant. Hence, from above data it is clear that equivalent cyclic process is