If for hydrogen `C_(P) - C_(V) = m` and for nitrogen `C_(P) - C_(V) = n`, where `C_(P)` and `C_(V)` refer to specific heats per unit mass respectively at constant pressure and constant volume, the relation between `m` and `n` is (molecular weight of hydrogen = 2 and molecular weight or nitrogen = 14)

Options

A. a=16b
B. b=16a
C. a=4b
D. a=b

Answer

D

Explanation

Both are diatomic gases and `C_(P)-C_(V)=R` for all gases