Which one of the following formulae is INCORRECT?
Correct answer: C. Cp/Cv=R
- A. PV=nRT
- B. Cp-Cv=R
- C. Cp/Cv=R
- D. W= F.d
Explanation
All of the other options have formulae that are correct. Cp-Cv=R indicates the relationship of specific heat constants with a gas. PV=nRT is the simple gas equation, and work done is equal to force x displacement. Hence the only incorrect equation from these is Cp/Cv=R
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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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