In molar specific heat, the equation Cp-Cv = R shows that:
Correct answer: C. Cp > Cv
- A. Cp < Cv
- B. Cp = Cv
- C. Cp > Cv
- D. Cp = Constant
Explanation
So, Cp is greater than Cv, and Cp - Cv = R is a representation of this relationship for ideal gases. This means that for a given amount of substance, when heat is added at constant pressure, the temperature change is greater than when heat is added at constant volume.
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About Molar Specific Heat of a Gas
Molar specific heat is the heat required to raise the temperature of one mole of a gas by one kelvin, expressed through Q = nCΔT. Questions compare the constant volume value Cv with the constant pressure value Cp, apply the ideal gas relation Cp − Cv = R, and identify how the thermodynamic process affects heat capacity.
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