ThermodynamicsHard

Question

For which of the following gases, the difference in specific heats at constant pressure and at constant volume is equal to 0.04545 cal/gm?

Options

A.N2
B.N2O
C.CO
D.CO2

Solution

$C_{P,m} - C_{V,m} = R$

$\Rightarrow S_{P} - S_{V} = \frac{R}{M} = 0.04545 $$$\therefore M = 44\text{ gm/mol}$$

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