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For a gas if $\gamma = 1.4$, then atomicity, ${C_p}$ and ${C_v}$ of the gas are respectively
  • AMonoatomic, $\frac{5}{2}R,\;\frac{3}{2}R$
  • BMonoatomic, $\frac{7}{2}R,\;\frac{5}{2}R$
  • CDiatomic, $\frac{7}{2}R,\;\frac{5}{2}R$
  • DTriatomic, $\frac{7}{2}R,\;\frac{5}{2}R$
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