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### 15.15

Posted: Thu Feb 22, 2018 3:04 pm
Is the concentration of CH3Br raised to the power of 1.2 in the rate law for the reaction? What does 1.2 imply?

### Re: 15.15

Posted: Thu Feb 22, 2018 3:18 pm
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

### Re: 15.15

Posted: Wed Feb 28, 2018 12:37 pm
Since the rate increase is linear to reactant concentration increase, it implies it's first order.

### Re: 15.15

Posted: Wed Feb 28, 2018 9:19 pm
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.

### Re: 15.15

Posted: Wed Feb 28, 2018 9:34 pm
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].