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Grade 12th passThermal Physics

what is the degree of freedom for a multiatomic gas ?

Akshay

8 Years agoGrade 12th pass

1 Answer

Arun

8 Years ago

Dear Akshay

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 (3tanslational 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).

Regards

Arun (askIITians forum expert)

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