## solving 11.7

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Sammy Thatipelli 1B
Posts: 63
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### solving 11.7

How do you know which flask represents equilibrium in this question? For equilibrium, does it occur when the number of double molecules equal the number of single molecules in the flask? I am having a hard time understanding how the diagram shows equilibrium.

Hannah Chew 2A
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Joined: Fri Sep 29, 2017 7:05 am
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### Re: solving 11.7

At equilibrium, the concentrations of reactants and products are constant, so they don't have to necessarily be equal. In this case, the concentration of "single" and "double" molecules do not change from the third to the fourth flask because the number of each remains constant. Therefore, the third flask is where the reaction has reached equilibrium.

Raymond Zhang 3H
Posts: 13
Joined: Fri Sep 29, 2017 7:07 am

### Re: solving 11.7

It's basically just counting molecules in the flasks. You'll also need that for part B of the question where you find percentage decomposed.