Molar heat capacity at constant pressure is given by:
Correct answer: B. dQ/dT
- A. dQ/dV
- B. dQ/dT
- C. dU/dT
- D. dU/dV
Explanation
Heat capacity is the amount of heat added to a substance to raise its temperature by one kelvin. Hence, at constant pressure, the molar heat capacity is given by the ratio: dQ/dt.
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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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