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During kinetic study of reaction 2A + B C + D, the following results were obtained : [figure] Based on above data, overall order of the reaction is .
3
Rate = k[A]x[B]y
IV ÷ I ([B] same): 2.40 10-26.0 10-3 = ( 0.40.1 )x ⇒ 4 = 4x ⇒ x = 1
III ÷ II ([A] same): 2.88 10-17.2 10-2 = ( 0.40.2 )y ⇒ 4 = 2y ⇒ y = 2
∴ Overall order = x + y = 1 + 2 = 3
Answer: 3
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