For a gas (R/Cv)=0.4, where R is the universal gas constant and Cv is the molar specific heat at constant volume. The gas is made up of molecules which are

Question

For a gas (R/Cv)=0.4, where R is the universal gas constant and Cv is the molar specific heat at constant volume. The gas is made up of molecules which are (A) rigid diatomic (B) monoatomic (C) non- rigid diatomic (D) polyatomic

Tardigrade Admin · Accepted Answer

(R/Cv)=0.4 ⇒ (Cp-Cv/Cv)=0.4 (cp/cv)-1=0.4 ∴ (Cp/Cv)=1.4 ⇒ &gamma;=1.4 As &gamma;=1.4, the gas is diatomic in nature. Example, air molecules.

Q. For a gas $\frac{R}{C _{v}} = 0.4,$ where $R$ is the universal gas constant and $C_{v}$ is the molar specific heat at constant volume. The gas is made up of molecules which are

rigid diatomic

monoatomic

non- rigid diatomic

polyatomic

$\frac{R}{C _{v}} = 0.4 \Rightarrow \frac{C _{p} - C _{v}}{C _{v}} = 0.4$
$\frac{c _{p}}{c _{v}} - 1 = 0.4$
$∴ \frac{C _{p}}{C _{v}} = 1.4 \Rightarrow γ = 1.4$
As $γ = 1.4$ , the gas is diatomic in nature. Example, air molecules.

Q. For a gas Cv​R​=0.4, where R is the universal gas constant and Cv​ is the molar specific heat at constant volume. The gas is made up of molecules which are