1) A fixed mass m of gas is subjected to the 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) M to N and n to K Answer: Option BExplanation:L → M at constant V → isochoric N→K