Question 11.89

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Adrienne_4F
Posts: 52
Joined: Thu Sep 27, 2018 11:27 pm

Question 11.89

Postby Adrienne_4F » Thu Jan 17, 2019 10:05 pm

How do we know that the coefficient for A and C is 2 based on the graph that is given?

Kim Tran 1J
Posts: 50
Joined: Thu Sep 27, 2018 11:24 pm

Re: Question 11.89

Postby Kim Tran 1J » Thu Jan 17, 2019 10:20 pm

Based on the plot you know the initial kPa and the kPa at equilibrium. So you can draw out an ICE box.
A B C
I 28 0 0
C (-10) (+5) (+10)
E 18 5 10

Hence knowing the initial and equilibrium you can determine the change, which would be 10, 5, and 10. You can simplify this ratio to 2:1:2, thus you get
2A -> B + 2C


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