Chemical EquilibriumHard

Question

For a reversible reaction aA + bB ⇋ cC + dD ; the variation of K with temperature is given by log then

Options

A.K2 > K1     if     T2 >  T1 for an endothermic change
B.K2 < K1     if     T2 >  T1 for an endothermic change
C.K2 > K1     if     T2 >  T1 for an exothermic change
D.K2 < K1     if     T2 >  T1 for an exothermic change

Solution

For endothermic reaction, ᐃHo is positive so, if T2 > T1 then K2 > K1.
For exothermic reaction, ᐃHo is negative so, if T2 > T1 then K2 < K1.

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