question_answer

1 mole of an ideal gas goes from an initial state A to final state B via two processes. It first undergoes isothermal expansion from volume V to 3V and their its volume is reduced from 3V to V at constant pressure. The correct p-V diagram representing the two process is:

A)

B)

C)  

D)

Correct Answer: A

Solution :

[a] AC = Isothermal process CB = Pressure constant Isobaric