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Which of the following quantities is larger for a diatomic has than that of a monoatomic gas?

(A) $C_p - C_v$ (B) $C_p / C_v$ (C) $C_p + C_v$ (D) None of these
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1 Answer

For a diatomic gas, $C_p = \large\frac{7}{2}$$R$ and $C_v = \large\frac{5}{2}$$R$.
For a diatomic gas, $C_p = \large\frac{5}{2}$$R$ and $C_v = \large\frac{3}{2}$$R$.
Clearly, (C) $C_p + C_v$ is higher.
answered Jan 23, 2014 by balaji.thirumalai

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