List I | List II | ||
A | 3 Translational degrees of freedom | I | Monoatomic gases |
B | 3 Translational, 2 rotational degrees of freedoms | II | Polyatomic gases |
C | 3 Translational, 2 rotational and 1 vibrational degrees of freedom | III | Rigid diatomic gases |
D | 3 Translational, 3 rotational and more than one vibrational degrees of freedom | IV | Nonrigid diatomic gases |
Monoatomic gases possess only translational degrees of freedom. So, option (I) matches with (A).
Polyatomic gases have translational and rotational degrees of freedom. So, option (II) matches with (D).
Rigid diatomic gases have translational, rotational and vibrational degrees of freedom. So, option (III) matches with (B).
Non-rigid diatomic gases possess translational, rotational and vibrational degrees of freedom. So, option (IV) matches with (C).