Specific heat capacity at constant volume of gases in an adiabatic process is:
Correct answer: B. Zero
- A. ∞
- B. Zero
- C. Finite but not zero
- D. 0 < C < ∞
Explanation
This question is conceptually tricky. Specific heat is a property of a substance, but in an adiabatic process, heat transfer Q is zero by definition. Since C = Q/(mΔT), if Q is always zero regardless of ΔT, the effective specific heat for that process is zero.
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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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