15.15


Moderators: Chem_Mod, Chem_Admin

Gabriela Carrillo 1B
Posts: 53
Joined: Fri Sep 29, 2017 7:04 am

15.15

Postby Gabriela Carrillo 1B » 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?

Johann Park 2B
Posts: 51
Joined: Thu Jul 27, 2017 3:01 am
Been upvoted: 1 time

Re: 15.15

Postby Johann Park 2B » 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

melissa carey 1f
Posts: 53
Joined: Fri Sep 29, 2017 7:06 am

Re: 15.15

Postby melissa carey 1f » Wed Feb 28, 2018 12:37 pm

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

Chloe1K
Posts: 23
Joined: Fri Sep 29, 2017 7:05 am

Re: 15.15

Postby Chloe1K » 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.

Janine Chan 2K
Posts: 71
Joined: Fri Sep 29, 2017 7:04 am

Re: 15.15

Postby Janine Chan 2K » 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].


Return to “First Order Reactions”

Who is online

Users browsing this forum: No registered users and 1 guest