A and b are both classical ideal gases of diatomic molecules. the point-like atoms in a are bonded rigidly to form diatomic molecules while in b they are connec

A and B are both classical ideal gases of diatomic molecules. The point-like atoms in A are bonded rigidly to form diatomic molecules while in B they are connected by bonds of finite stiffness. The ra- tio of the specific heat per molecule at constant volume of gas A to gas B is (a) I (c) 6/5 II Se] (b) 5/7 (d) 3/4