Question

effect of pressure on chemical equilibrium

Answer 1

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There is no effect of pressure if the number of moles of gaseous reactant and products is equalised. However, it is different for the total number of moles of gaseous reactants and a total number of moles of gaseous products. On increasing the pressure, the total number of moles per unit volume also increases leading to shifting in the equilibrium direction wherein the number of moles per unit volume will be less.

If the total number of moles of products are more than the total number of moles of reactants, in this case, the low pressure will also favour forward reaction. If the number of moles of reactants is more than that of products, high pressure would be favourable to forward reaction.

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