15.15

[Gabriela Carrillo 1B]

Is the concentration of CH3Br raised to the power of 1.2 in the rate law for the reaction? What does 1.2 imply?

[Johann Park 2B]

The concentration increased by a factor of 1.2 means that the rate of the reaction also increases by a factor of 1.2:

1.2Rate = k [1.2CH₃Br]^x[OH^-]^y

[melissa carey 1f]

Since the rate increase is linear to reactant concentration increase, it implies it's first order.

[Chloe1K]

I think the book just gave a random increase to concentration to show that if rate increases by the same factor it is a first order reaction.

[Janine Chan 2K]

Doesn't ln[A] vs. time have to be linear to assume it's first order? Or in this case we're just saying that in this question, we can see that multiplying by a factor of 1.2 will increase the rate by a factor of 1.2, which aligns with the first order differential rate law rate = k[A].