Unit of molar specefic heat is same as that of:
Correct answer: B. General gas constant
- A. Entropy
- B. General gas constant
- C. Internal energy
- D. Pressure
Explanation
The correct answer is General gas constant because the unit of molar specific heat is Joules per Kelvin per mole (J/K·mol), which is the same as the unit of the general gas constant. The molar specific heat indicates the amount of energy needed to increase the temperature of one mole of a substance by one Kelvin. Other options, such as entropy, internal energy, and pressure, have different units and do not match with the unit of molar specific heat, hence they are incorrect.
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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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