Problem: In a first-order reaction, how does the rate change if the concentration of the reactant decrease to one-third its original value?a. The rate increases by a factor of one-thirdb. The rate decreases by a factor of one-third. c. The rate stays the same

FREE Expert Solution

Recall that the differential rate for a first-order reaction is as follows:

Rate = -[A]t=k[A]


We are asked to determine the rate if the concentration of the reactant decreases to one-third of its original value. 


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Problem Details

In a first-order reaction, how does the rate change if the concentration of the reactant decrease to one-third its original value?

a. The rate increases by a factor of one-third

b. The rate decreases by a factor of one-third. 

c. The rate stays the same

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