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Which flask represents the reaction in equilibrium?

Posted: Mon Nov 28, 2016 4:17 pm
by E_Villavicencio 2N
In question number 7 of Chapter 11, we are given the pictures of 4 flasks of a reaction of dissociation, and we are asked to select the flask that represents equilibrium.

I see the same number of molecules and atoms in both flask 3 and flask 4. The answer says Flask 3. Why is flask 3 the one at equilibrium and why isn't flask 4?

Re: Which flask represents the reaction in equilibrium?

Posted: Mon Nov 28, 2016 5:59 pm
by Lucy Dong 1G
I think it just asks you to pick when the flask first REACHES equilibrium, which would be flask 3!

Re: Which flask represents the reaction in equilibrium?

Posted: Mon Nov 28, 2016 6:07 pm
by Chem_Mod
I think the flask are supposed to be in numerical order, i.e. time 1= flask 1, time 2= flask 2, etc. So since 3 comes before 4, and the question is asking "which flask represents the point in time at which the reaction has reached equilibrium" then 3 would be the correct answer. True flask 4 is also at equilibrium but the reaction reached equilibrium at flask 3 first.