Specefic 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
The correct answer is B because in an adiabatic process, there is no heat exchange (Q = 0) between the gas and its surroundings. As a result, the specific heat capacity at constant volume (Cv) is zero, meaning there is no change in the gas's internal energy during the adiabatic process when the volume changes. Adiabatic processes are characterized by the absence of heat transfer and are essential in many thermodynamic applications, such as in the behavior of compressible gases.
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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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