Question

Find the degree of freedom of a mono, di and triatomic gas molecules.

Answer 1

Hey mate here's your answer

The total number of independent modes(ways) in which a system can possess energy is called Degree of freedom.

• Monoatomic GAS : The molecules pf monoatomic gas can move in any direction in space so it can have three independent motions and hence 3 degree of freedom (all translational).

• Diatomic GAS : A molecule of diatomic gas has five degrees of freedom (3 tanslational and 2 rotational).

• Triatomic GAS (non-linear) : A molecule of non linear gas can rotate about any of three co-ordinate axes.Hence it has six degrees of freedom (3 translational and 3 rotational).