For a gas having molar mass `M`, specific heat at constant pressure can be given as:
A. `(gammaR)/(M(gamma-1))`
B. `gamma/(RM)`
C. `M/(R(gamma-1))`
D. `(gammaRM)/(gamma+1)`
A. `(gammaR)/(M(gamma-1))`
B. `gamma/(RM)`
C. `M/(R(gamma-1))`
D. `(gammaRM)/(gamma+1)`
Correct Answer – A
`C_(P)-C_(v)=R`
`:. C_(P)-C_(v)=R/M`
Also `(C_(p))/(C_(v))=gamma`
`:. C_(p)-(C_(p))/(gamma)=R/M`
`:. C__(p)=(R.gamma)/(M(gamma-1))`