According to law of equipartition of energy the molar specific heat of a diatomic gas at constant volume where the molecule has one additional vibrational mode is :-
Solution
Diatomic gas molecules have three translational degree of freedom, two rotational degree of freedom \& it is given that it has one vibrational mode so there are two additional degree of freedom corresponding to one vibrational mode, so total degree of freedom $=7$<br/><br/>
$\mathrm{C}_{\mathrm{v}}=\frac{\mathrm{fR}}{2}=\frac{7 \mathrm{R}}{2}$
About this question
Subject: Physics · Chapter: Thermodynamics · Topic: Zeroth and First Law
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