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Question

The volume of gases H2, CH4, CO2, and NH3 adsorbed by 1g of charcoal at 288K are in the order:

A
H2>CH4>CO2>NH3
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B
CH2>CO2>NH3>H2
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C
CO2>NH3>H2>CH4
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D
NH3>CO2>CH4>H2
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Solution

The correct option is D NH3>CO2>CH4>H2

The amount of gas adsorbed by a solid depends on the nature of the gas. In general, easily liquefiable gases having higher critical temperatures are easily adsorbed because they have strong van der Waal's forces.

The increasing order of critical temperature is NH3>CO2>CH4>H2

The volume of gases H2,CH4,CO2,NH3 adsorbed by 1g of charcoal at 288K are in the order: NH3>CO2>CH4>H2.

Hence option D is correct.


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