Chapter 15 Question 19

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Katrina_Domingo_3G
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Joined: Wed Sep 21, 2016 2:59 pm

Chapter 15 Question 19

Postby Katrina_Domingo_3G » Sun Feb 19, 2017 2:51 pm

Hello
For this question, i dont understand how they obtained the rate order for reactant B from the table. Can someone please explain this? Thanks!!
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feodora_r_3d
Posts: 16
Joined: Wed Sep 21, 2016 2:59 pm

Re: Chapter 15 Question 19

Postby feodora_r_3d » Sun Feb 19, 2017 3:26 pm

This exercise is similar to example 15.2 on page 621-622.
So in determining the reaction order in B, try to look at experiment 1 and experiment 3. From the two experiments,
the concentration of B is increased by:
the rate (of the overall equation) changed by :
This means that
Hence, using ln, we obtained:


Because of this, the order of reaction for reactant B is 2.
Hope this helps!


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