# What is Mayer's formula ?

The difference between the specific heat of a gas at constant pressure(${c}_{p}$) and its specific heat at constant(${c}_{v}$) volume is equal to the universal gas constant(R) divided by the molecular weight(M) of the gas. i.e. ${c}_{p} - {c}_{v} = \frac{R}{M}$.This relation is known