First slide

Gaseous state

Question

Compressibility factor for H₂ behaving as real gas is

Moderate

A

1
B

$(1 - \frac{a}{RTV})$
C

$(1 + \frac{pb}{RT})$
D

$\frac{RTV}{(1 - a)}$

Solution

$For H_{2}, attractive forces are neglected, hence$ $\frac{a}{V^{2}} = 0$
$∴ p (V - b) = RT \Rightarrow pV = RT + pb$
$∴ \frac{pV}{RT} = (1 + \frac{pb}{RT}) = Z$

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