Mayer's Formula

A Mayer's formula given by Julius Robert Mayer, a German chemist and physicist, states that the difference between the specific heat of a gas at constant pressure and its specific heat at constant volume. According to Mayer's equation given below the difference between the specific heat capacity at constant pressure and constant volume is equal to the universal gas constant, thus the molar specific heat at constant pressure is equal: Cp = Cv + R.

Mayer's Equation


R = Cp - Cv


R = Universal Gas Constant
Cp = Specific Heat at Constant Pressure
Cv = Specific Heat at Constant Volume

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The above Mayer's formula is one among the important formulae to be remembered the physics students. Mayer's equation can also be used to find the value of any one among the three in the equation with the known values of other two.

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