Question

Rank these in order of increasing constant-pressure molar specific heat capacity, and explain why: Steam, Helium, N₂ gas, Iron Throne.

Answer 1

Molar Specific Heat of a gaseous substance is defined as the amount of heat absorbed or rejected to change the temperature of one mole of it by one unit. When we keep the pressure of the gas constant the term is called the molar specific heat capacity of a gas at constant pressure (Cp)..

Rank of constant pressure molar heat capacity:-

Cp_{iron throne} <Cp_steam<Cp_helium <Cp _{N2 gas .}