## K

Ajith Raja 2L
Posts: 24
Joined: Wed Nov 18, 2015 3:00 am

### K

Can someone help understand the constant K? Thank you. I greatly appreciate your help.

Hannah Markovic 3C
Posts: 32
Joined: Fri Sep 25, 2015 3:00 am

### Re: K

Uppercase K is not a constant but is the ratio of products to reactants of a reaction at equilibrium. I think you mean lowercase k which is the rate constant for a reaction. This is just a number that you multiply the concentrations of the reactants by to get the rate of the reaction. Just don't get confused between K and k and you should be fine.

Allison Yoon 3B
Posts: 22
Joined: Fri Sep 25, 2015 3:00 am

### Re: K

Just for more clarification, lowercase k is the rate constant. Uppercase K is the equilibrium constant.
You can actually use k to find K (equilibrium constant).

K=k/k'

This means that the equilibrium constant is the rate constant of the forward reaction divided by the rate constant of the reverse reaction.

Alex Chiodo Ortiz 3G
Posts: 13
Joined: Fri Sep 25, 2015 3:00 am

### Re: K

lower case k, rate constant, has different units. Make sure you know the difference in units between 1st, 2nd and zero order.