Chemistry Practice Problems Identifying Reaction Order Practice Problems Solution: For each of the following cases, identify the orde...

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Solution: For each of the following cases, identify the order with respect to the reactant, A.  i) The half-life of A is independent of the initial concentration of [A]. ii) A threefold increase in the initial concentration of A leads to a ninefold increase in the initial rate. iii) A threefold increase in the initial concentration of A leads to a 1.73-fold increase in the initial rate. iv) The time required for [A] to decrease from [A]0 to [A]0/2 is equal to the time required for [A] to decrease from [A]0/2 to [A]0/4. The rate of decrease of [A] is a constant. 

Problem

For each of the following cases, identify the order with respect to the reactant, A. 

i) The half-life of A is independent of the initial concentration of [A].

ii) A threefold increase in the initial concentration of A leads to a ninefold increase in the initial rate.

iii) A threefold increase in the initial concentration of A leads to a 1.73-fold increase in the initial rate.

iv) The time required for [A] to decrease from [A]0 to [A]0/2 is equal to the time required for [A] to decrease from [A]0/2 to [A]0/4. The rate of decrease of [A] is a constant.