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The molar specific heats of an ideal gas at constant pressure and volume are denoted by Cp and Cv, respectively. If = CpCv and R is the universal gas constant, then Cv is equal to
(4) R( - 1)
Mayer's relation: Cp - Cv = R
Cp = Cv
Cv - Cv = R
Cv = R - 1
Answer: (4)
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