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For a certain gas the ratio of specific heats is given to be γ = 1.5. For this gas

1. Cp = 3R/J
2. Cp = 3R/J
3. Cp = 5R/J
4. Cv = 5R/J

Correct answer: Cp = 5R/J

Solution

The ratio of specific heats γ = Cp/Cv. For γ = 1.5, we know Cp = 1.5Cv. Using the relation Cp - Cv = R/J, we solve to find Cp = 5R/J.

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