70 calories of heat is required to raise the temperature of 2 mole of an ideal gas at constant press

Question

70 calories of heat is required to raise the temperature of 2 mole of an ideal gas at constant pressure from $30^{\circ} \mathrm{C}$ to $35^{\circ} \mathrm{C}$. The amount of heat(in calories) required to raise the temperature of the same gas through the same range at constant volume is

Professor PC Thomas Classes · Answer

Use Mayers Relation. The value of R is 2 cal/mol-K.