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CBSE Class 11-science Answered

(a)  How many degrees of freedom are there due to vibration motion of diatomic gas molecules?

(b)  How many degrees of freedom are there for monoatomic, diatomic and triatomic gas due to translational and rotational motion only?

Asked by Topperlearning User | 04 Jun, 2014, 01:23: PM
Expert Answer

(a)  One.  Because diatomic gas has at the maximum six degrees of freedom (2 x 3 = 6) out of which, three are due to translational motion, two are due to rotational motion.

(b)  Monoatomic gas has only three degrees of freedom and they are only translational.

Diatomic gas has five degrees of freedom.

Triatomic linear e.g. CO2 gas has seven degrees of freedom and triatomic angular has six degrees of freedom.

 

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