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Spontaneity

Explain how i...

Question

Explain how individual gases can be separated from a gaseous mixture of $O_{2}$ , $H_{2}$ and $C O_{2}$ .

A

Passing through

K O H

solution, then diffusion

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B

Partial evaporation, then diffusion

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C

Preferential liquefaction, then partial evaporation

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D

All of the above

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Solution

The correct option is B Passing through $K O H$ solution, then diffusion
Individual gases can be separated from a gaseous mixture of $O_{2}$ , $H_{2}$ and $C O_{2}$ passing through $K O H$ solution, then diffusion. $K O H$ will absorb $C O_{2}$ gas. $O_{2}$ and $H_{2}$ have different rates of diffusion as they have different molecular weights.

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