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23. For a gas if γ=1.4 , then atomicity,

Cp and Cv of the gas are respectively

(a)  Monoatomic,  (5/2)R ,(3/2)R          (b)  Monoatomic, (7/2)R ,(5/2)R

(c)   Diatomic, (7/2)R ,(5/2)R                (d)  Triatomic, (7/2)R ,(5/2)R

Answer-c

(6)

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