Problem- The gas phase reaction A + B ? C has a reaction rate which is experimentally observed to follow the relationship rate = k[A]2[B]. Which one of the following would affect the value of the specific rate constant, k?
(1) decreasing the temperature
(2) changing the concentration of A
(3) changing the concentration of B
(4) changing the concentration of C
(5) letting the reaction go on for a long time
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