Mathematically, molar specific heat at constant pressure can be expressed as:
Correct answer: A. Cp=Qp/∆T
- A. Cp=Qp/∆T
- B. Cp=T/∆Qp
- C. Cp=∆T/Qp
- D. Cp=Qp x T
Explanation
The expression Cp = Qp / ∆T is the correct mathematical representation of molar specific heat at constant pressure. It quantifies the heat required to change the temperature of a substance by a certain amount while keeping pressure constant. Option A captures this relationship correctly, while the other options either invert the ratio or incorrectly relate heat and temperature.
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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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