1.

Why pressure has no effect on the synthesis of HI?

Answer»

(i) When the total number of moles of gaseous reactants and gaseous products are equal, the change in pressure has no effect on system at equilibrium. 

H2(g) + I2(g) ⇌ 2HI(g)

Here the number of moles of reactants and products are equal. So the pressure has no effect on such equilibrium with ∆ng = O.



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