A substance undergoes first-order decomposition. The decomposition follows two parallel first-order reaction with K1 = 1.26 × 10^-4 s^-1 for the formation of 'B' and K2 = 3.15 × 10^-5 s^-1 for the for

Question

A substance undergoes first-order decomposition. The decomposition follows two parallel first-order reaction with K1 = 1.26 × 10^-4 s^-1 for the formation of 'B' and K2 = 3.15 × 10^-5 s^-1 for the formation of 'C'. The percentage distribution of 'B' and 'C' are

Prashant Kotian · Accepted Answer

Correct answer: A. Percentage of B = (K1 / (K1 + K2)) × 100 = (1.26 / (1.26 + 0.315)) × 100 = (1.26 / 1.575) × 100 = 80%. Percentage of C = 20%. Therefore, correct answer is A.

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