Chemical Reaction Engineering
The effect of increasing pressure on the gaseous equilibrium of the reaction 2X+3Y ⇋ 3X+2Y indicates that

None of these
Backward reaction is favoured
Forward reaction is favoured
Pressure has no effect

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Chemical Reaction Engineering
In Langmuir treatment of adsorption,

All the adsorption does not take place by the same mechanism
Whole surface of the catalyst does not have the same activity for adsorption and there is attraction between the adsorbed molecule
Extent of adsorption is more than one complete monomolecular layer on the surface
Whole surface of the catalyst is essentially uniform and the adsorbed molecule has no effect on the rate of adsorption per site

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