For two reactions: A -K1→ P and B -K2→ Q of first and second order, respectively, if the initial concentrations of A and B are same (1 M), then the time taken by A and B to reach at 0.5 M concentratio

Question

For two reactions: A -K1→ P and B -K2→ Q of first and second order, respectively, if the initial concentrations of A and B are same (1 M), then the time taken by A and B to reach at 0.5 M concentration is same. Which of the following is/are correct statement(s) regarding the reactions?

Prashant Kotian · Accepted Answer

Correct answer: B,D. t_1/2 (first-order) = 0.693/K1; t_1/2 (second-order) = 1/(K2×[B]0) = 1/K2. Equal t_1/2: K2 = 1.44K1 > K1. Initial rate B = K2×1² = K2 > K1 = initial rate A.

💡 Solution & Explanation

Practice 22,000+ questions like this