An ideal gas has Cv = 20.8 J mol^-1 K^-1. Taking R = 8.31 J mol^-1 K^-1, Cp is about
A20.8 J mol^-1 K^-1
B29.1 J mol^-1 K^-1
C12.5 J mol^-1 K^-1
D37.4 J mol^-1 K^-1
Answer & Solution
Correct answer: B. 29.1 J mol^-1 K^-1
Cp = Cv + R = 20.8 + 8.31, which is about 29.1 J mol^-1 K^-1.
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