What is meant by degrees of freedom? Find degrees of freedom for mono di and tri-atomic gas molecule.

Explanation

Degrees of freedom are total number of coordinates or independent quantities required to describe the positions or configuration of the system.
Degrees of freedom of diatomic gas
We know, for an idela gas, degrees of freedom is given by
k= number of relations between them
For diatomic molecule n=2
k=1
SO `f=(3 times 2-1)=5` SO degrees of freedom of diatomic molecule is 5