Given the rate law for the reaction between A and B, rate = k[A][B]^2 what is th

Question

Given the rate law for the reaction between A and B, rate = k[A][B]^2 what is the reaction order with respect to A? What is the overall reaction order? How will the rate change if the concentration of A is doubled and the concentration of B is tripled at the same time? Show your work. The rate constant is affected by temperature through the Arrhenius equation k = Ae^-E_a/RT Explain how the temperature impacts the reaction rate (as the temperature increases and decreases). Show your reasoning. Given the following data for the reaction A rightarrow B, determine the activation energy, E_a, of the reaction.

Explanation / Answer

1)

Order with respect to A = power of [A] = 1

overall order = sum of all power = 1+2 = 3

final rate / initial rate = [Af][Bf]^2 / [Ai][Bi]^2

final rate / initial rate = [2*Ai][3*Bi]^2 / [Ai][Bi]^2

final rate / initial rate = 18*[Ai][Bi]^2 / [Ai][Bi]^2

= 18

Answer: rate increases by 18 times

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