Question

For a gas $\frac{R}{C_v}=0.67$. This gas is made up of molecules which are

• A. Diatomic
• B. Mixture of diatomic and polyatomic molecules
• C. Monoatomic
• D. Polyatomic

Answer 1

The correct option is C

Monoatomic

$C_v=\frac{R}{\gamma -1}\Rightarrow \gamma -1=0.67\Rightarrow \gamma =1.67=\frac{5}{3}$