Question

The degree of freedom of a molecule of a triatomic gas is
(a) 2 (b) 4
(c) 6 (d) 8

Answer 1

Answer:

6

Explanation:

A triatomic molecule has 9 degrees of freedom, in general. There are 3 translational modes, 3 rotational and 3 vibrational. The "6 degrees of freedom" triatomic molecule neglects the vibration modes, which usually are not active at room temperature.

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