InterviewSolution
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InterviewSolution
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Consider the following reactions in which all the reactants and the products are in gasous state ` 2 PQ hArr P_(2) + Q_(2) , K_(1) = 2.5 xx 10^(5)` ` PQ + 1/2 R_(2) hArr PQR, K_(2) = 5 xx 10^(-3)` The value of `K_(3)` for the equilibrium ` 1//2 P_(2) + 1//2 Q_(2) + 1//2 R_(2) hArr PQR, ` isA. `2.5 xx 10^(-3)`B. `2.5 xx 10^(3)`C. `1.0 xx 10^(-5)`D. ` 5 xx 10^(3)` |
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Answer» Correct Answer - C For `2 PQ hArr P_(2) + Q_(2) , K_(1) = ([P_(2)] [Q_(2)])/([PQ]^(2))` For ` PQ + 1/2 R_(2) hArr PQR, ` `K_(2) = ([PQR])/([PQ] [R_(2)]^(1//2))` For the required equilibrium ` 1/2 P_(2) + 1/2 Q_(2) + 1/2 R_(2) hArr PQR` ` K = ([PQR])/([P_(2)]^(1//2) [Q_(2)]^(1//2) [R_(2)]^(1//2))=(K_(2))/(sqrt(K_(1)))` ` = ( 5xx 10^ (3))/(sqrt(2*5 xx 10^(5) ))=(5xx 10^(-3))/(5xx 10^(2))= 10^(-5)` |
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