If Cv denotes molar specific heat at constant volume and △T is the change in temperature, then CvΔT gives:
Correct answer: D. Internal energy
- A. Volume
- B. Pressure
- C. Entropy
- D. Internal energy
Explanation
Internal energy Explanation: The change in internal energy (ΔU) of an ideal gas at constant volume is given by ΔU = nCvΔT, where n is the number of moles. If n=1 then ΔU=CvΔT.
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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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