The value of Cv for monoatomic gas is:
Correct answer: A. 3 / 2
- A. 3 / 2
- B. 1 / 2
- C. 4 / 2
- D. None
Explanation
The molar specific heat capacity of a gas at constant volume (Cv) is the amount of heat required to raise the temperature of 1 mole of the gas by 1 °C at the constant volume.Its value for monatomic ideal gas is 3R/2 and the value for diatomic ideal gas is 5R/2.
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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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