KVPY SX SB Exam 2015 Question Paper

Question : 102 of 120

Marks: +1, -0

The equilibrium constants for the reactions X = 2Y and Z = P + Q are K

_1

and K

_2

, respectively. If the initial concentrations and the degree of dissociation of X and Z are the same, the ratio

K_1/K_2

Solution:

\table X,⇌,2Y,k_1,Z,⇌,P,+,Q,k_2;1 ,,0 ,,1 ,,0,, 0;1-α,,2α,,1-α,,α,,α

k_1/k_2={(2α)^2/(1-α)}/{α^2/(1-α)}={4α^2}/α^2=4

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