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Which of the following relations hold true for a monatomic gas?

(A) $C_p - C_v = R$ (B) $C_p - C_v =3.75 R^2$ (C) $C_p+ C_v = R$ (D) Both (A) and (B)

1 Answer

$C_p - C_v$ is true for any ideal gas.
$C_p \times C_v = \large\frac{3R}{2} $$\times\large\frac{5R}{2}$$ = 3.75 R^2$ for any monoatomic gas.
$Cp+C_v \neq R$, as its always greater than or equal to $4R$.
answered Jan 28, 2014 by balaji.thirumalai

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