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Factors Affecting Adsorption

Given van der...

Question

Given van der Waals constant for $N H_{3}, H_{2}, O_{2}$ and $C O_{2}$ are respectively $4.17, 0.244, 1.36$ and $3.59$ , which one of the following gases is most easily liquefied?

A

O_{2}

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B

N H_{3}

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C

C O_{2}

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D

H_{2}

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Solution

The correct option is B $N H_{3}$
Critical temperature $\propto$ van der Waal constant 'a'

Maximum 'a' $\Rightarrow$ gas with maximum $T_{C}$ $\Rightarrow$ easiest liquification $= N H_{3}$

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