The reaction X + Y → Z is first order with respect to X and second order with respect to Y , initial rate of formation of Z = R mol dm 3 sec − 1 when [X] and [Y] are 0 .40 mol dm − 3 and 0 .30 mol dm − 3 respectively. If [X] is halved and [

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The reaction X + Y → Z is first order with respect to X and second order with respect to Y , initial rate of formation of Z = R mol dm 3 sec − 1 when [X] and [Y] are 0 .40 mol dm − 3 and 0 .30 mol dm − 3 respectively. If [X] is halved and [Y] is doubled, the value of the initial rate would become

Quantrex Academy · Accepted Answer

Correct answer: D. 2 R

X + Y → Z R a t e 1 = K X Y 2 R a t e 2 = K X 2 2 Y 2 R a t e 1 R a t e 2 = 1 2 R a t e 2 = 2 R a t e 1 = 2 R

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