## Lesson 10 - Equilibrium

umbristo
Posts: 11
Joined: Wed May 03, 2017 9:23 pm

### Lesson 10 - Equilibrium

Hello,

I just wanted to clarify - are both graphs, depicted in the slide, examples of equilibrium? Or just the first one?

Thanks!
NS_Tutor_Andrew
Posts: 520
Joined: Mon May 23, 2016 1:47 pm

### Re: Lesson 10 - Equilibrium

Hi umbristo,

Do you mean the graphs in slides 1 and 2, where the top one has to do with rates of the forward/reverse reactions and the bottom one has to do with the concentration of reactants/products? If so, yes, both have to do with equilibrium. More precisely, they have to do with how a reaction reaches equilibrium. The x-axis is time, and at first, the reaction is not at equilibrium -- but it reaches equilibrium by about halfway along the x-axis.

An important point here is that both graphs do indeed represent equilibrium. As a reaction reaches equilibrium, the rate of the forward & reverse reactions becomes the same, while the relative concentrations of products & reactants stabilize -- however, the absolute concentrations may be very different.

Hope this helps & good luck!
Andrew D.
Content Manager, Next Step Test Prep.