The specific heat of a gas in adiabatic process is:
Correct answer: A. Zero
- A. Zero
- B. Infinite
- C. Negative
- D. Remains constant
Explanation
The specific heat of a gas in an adiabatic process is zero because there is no external pressure for the gas to expand against, the work done by or on the system is zero. Since this process does not involve any heat transfer or work, the first law of thermodynamics then implies that the net internal energy change of the system is zero. I.e. Q=W+U, U=0 and W=0 As C=q/mt, in adiabatic q=0, so according to equation,C=0
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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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