During Kinetic study of reaction 2A + B C + D, the following results were obtained : A[M] B[M] initial rate of formation of D I 0.1 0.1 6.0 × 10–3 II 0.3 0.2 7.2 × 10–2 III 0.3 0.4 2.88 × 10–1 IV 0.4

Question

During Kinetic study of reaction 2A + B C + D, the following results were obtained : A[M] B[M] initial rate of formation of D I 0.1 0.1 6.0 × 10–3 II 0.3 0.2 7.2 × 10–2 III 0.3 0.4 2.88 × 10–1 IV 0.4 0.1 2.40 × 10–2 Based on above data, overall order of the reaction is ……….

Prashant Kotian · Accepted Answer

Correct answer: .. r = K[A]x[B]y (I) 6 × 10–3 = K[0.1]x[0.1]y (IV) 2.4 × 10–2 = K[0.4]x[0.1]y (IV)/(I) 4 = (4)x x = 1 r = K[A]x[B]y (III) 2.88 × 10–1 = K[0.3]x[0.4]y (II) 7.2 × 10–2 = K[0.3]x[0.2]y (III)/(II) 4 = 2y y = 2 Overall order = x + y = 1 + 2 = 3

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