For polyatomic molecules having 'f' vibrational modes, the ratio of two specific heats,Cp/Cv is..........

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KollegeApply · Accepted Answer

(4+f)/(3+f) By the law of equipartition of energy, for one mole of polyatomic gas C_p=(4+f)R and C_v=(3+f)R `thereforeC_p/C_V=((4+f)R)/((3+f)R)=(4+f)/(3+f)`

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