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

Options

A. rigid diatomic
B. monoatomic
C. non-rigid diatomic
D. polyatomic

Answer

A

Explanation

According to question , `(R)/(C_(v))=0.4`
[R = universal constant and
`C_(v)`=molar specific heat at constant volume]
As we know, `C_(p)-C_(v)=R` `"So " (C_(p)C_(v))/(C_(v))=0.4`
`rArr" " (C_(p))/(C_(v))=0.4+1=1.4`
`"i.e "Y=1.4`
As Y = 1.4 , the gas is diatomic in nature.