## Equilibrium constants table

zfinn
Posts: 106
Joined: Fri Aug 30, 2019 12:16 am

### Equilibrium constants table

how do we know which equilibrium constant of the three per equation column (the ones decreasing in value) to use? for example in the Kc column for H2+I2--> 2HI do we use 794, 160, or 54? thanks so much!

Callum Guo 1H
Posts: 134
Joined: Fri Aug 02, 2019 12:15 am
Been upvoted: 1 time

### Re: Equilibrium constants table

Temperature is how you decide between the three. There should be a colmum that shows temperature for and a given K for that

Brooke Yasuda 2J
Posts: 102
Joined: Sat Jul 20, 2019 12:17 am

### Re: Equilibrium constants table

Yes, you look at temperature that is given in the problem. And this also helps to solidify the concept that equilibrium constants are temperature dependent. So at different temperatures, the equilibrium constants are different.

Lindsey Chheng 1E
Posts: 110
Joined: Fri Aug 30, 2019 12:16 am

### Re: Equilibrium constants table

zfinn wrote:how do we know which equilibrium constant of the three per equation column (the ones decreasing in value) to use? for example in the Kc column for H2+I2--> 2HI do we use 794, 160, or 54? thanks so much!

You would have to look at the given temperature in the problem as well as if the compounds are gases because the last column in the table has the Kc for gases.