First slide

Gaseous state

Question

In a gaseous mixture at 2O°C, the partial pressure of the components are,
$H_{2} : 150 torr {CH}_{4} : 300 torr {CO}_{2} : 200 torr C_{2} H_{4} : 100 torr$
Volume per cent of H₂ is

Moderate

A

26.67
B

73.33
C

80.00
D

20

Solution

Total pressure = 75O torr
$p_{H_{2}} pressure = 150 torr ∴ mole fraction of H_{2} = \frac{150}{750} = 0 .2 ∴ Volume per cent = 20$

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