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A gaseous mixture consists of $16 \mathrm{~g}$ of helium and $16 \mathrm{~g}$ of oxygen. The ratio $\frac{C_p}{C_v}$ of the mixture is
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$1.62$
$1.62$
$c_v=\frac{n_1 c_{v 1}+n_2 c_{v 2}}{n_1+n_2}=\frac{29 R}{18}$
$c_P=\frac{47 R}{18}, \quad \frac{c_P}{c_v}=1.62$
$c_P=\frac{47 R}{18}, \quad \frac{c_P}{c_v}=1.62$
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