Question

A fixed mass m of a gas is subjected to transformation of states from K to L to M to N and back to K as shown in the figure. The pair of isochoric processes among the transformation of states is:

• A. K to L and L to M
• B. L to M and N to K
• C. L to M and M to N
• D. None of the above

Answer 1

The correct option is B L to M and N to K

An isochoric process, also called a constant-volume process, an isovolumetric process, or an isometric process is a thermodynamic process during which the volume of the closed system undergoing such a process remains constant.

Upon heating at constant pressure, the volume of gas increases from K→L. Then on cooling at constant volume, pressure decreases from L → M. Later again at the constant pressure-volume decrease from M→N. Then at the end, heating at constant volume, the pressure of gas increases form N→K.

Hence, option B is correct.