For 3 moles of gas, Cp-Cv=
Correct answer: D. 3R
- A. 3/2R
- B. 2R
- C. 2/3R
- D. 3R
Explanation
The amount of energy required to raise the temperature of gas through 1°C /1 K at constant pressure is greater than the amount of energy required to do the same at constant volume by a factor R (universal gas constant).Therefore, Cp-Cv= nRFor 3 moles, it'd be equal to 3R
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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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