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Why does the reaction quotient (Q) increase with time as the reaction proceeds to equilibrium?

Why does the reaction quotient (Q) increase with time as the reaction proceeds to equilibrium?

Grade:11

1 Answers

AskiitianExpert Pramod-IIT-R
47 Points
14 years ago
let a reaction A + B == C + D the value of Q = [C][D]/[A][B]. Initially the concentration of C and D is zero and the concentrations are only of A and B. More concentration of a compound will give more probability to react with another substance. Initially the concentrations of A and B are high, so more chance to interact with each others. more chance to form the compounds C and D. So A and B will convert into C and D. The concentration of A and B will go down and rate of change from A+B to C+D will go down. so in Q equation [A] and [B] decreasing and [C] & [D] increasing. So Q value will increases with time as the reaction proceeds to equilibrium. With regards Pramod Kumar IITR Alumni

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