For a reaction of the form, A + B + C -> Products, the following observations ar

Question

For a reaction of the form, A + B + C -> Products, the following observations are made: tripling the concentration of A increases the rate by a factor of 9, doubling the concentration of B has no effect on the rate, and doubling the concentration of C increases the rate by a factor of 2. Write down the rate law for this reaction.

By what factor will the rate of the reaction described above change if the concentrations of A, B, and C are all halved (reduced by a factor of 2)?

a) The rate will change by a factor of 0.25.
b) The rate will change by a factor of 0.125.
c) The rate will change by a factor of 0.5.
d) The rate will change by a factor of 0.0625.
e) The rate will change by a factor of 1.

Explanation / Answer

rate = k [A] [C] c) The rate will change by a factor of 0.25.

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