The ratio of specific heats of a gas is 1.4 and the value of specific heat at constant pressure is 7.0 cal/mole °C. The difference between specific heat at constant presure and specific heat at constant volume will be

Question

Quizplus · Accepted Answer

The difference between specific heat at constant pressure (Cp) and specific heat at constant volume (Cv) is given by Cp - Cv = R, where R is the gas constant. Given the ratio of specific heats (γ = Cp/Cv) is 1.4, and Cp is 7.0 cal/mole°C, we can find Cv using γ = Cp/Cv = 1.4, which gives Cv = Cp/1.4 = 5 cal/mole°C. Therefore, Cp - Cv = 7 - 5 = 2 cal/mole°C.

The Ratio of Specific Heats of a Gas Is 1