## Kp given instead of Kc

$PV=nRT$

005321227
Posts: 90
Joined: Sat Sep 07, 2019 12:15 am

### Kp given instead of Kc

If Kp is given rather than Kc in a problem but the product is given in moles or grams rather than bars, how do you proceed with the problem? how can you convert to pressure?

Zoe Gleason 4F
Posts: 51
Joined: Tue Jul 23, 2019 12:15 am

### Re: Kp given instead of Kc

You can convert to pressure by using the ideal gas equation (PV=nRT).

Alice Ma 2K
Posts: 52
Joined: Wed Nov 13, 2019 12:26 am

### Re: Kp given instead of Kc

Given moles or grams, use the Ideal Gas law (PV=nRT) to pressure. Once converted, you can calculate using Kp.

WYacob_2C
Posts: 102
Joined: Sat Jul 20, 2019 12:16 am

### Re: Kp given instead of Kc

If you are given moles or grams, you can first convert into molarity, and from there you can use the equation, P=(n/v)RT to find the partial pressure of each gas in the reaction. Then, these numbers can be used to calculate Kp.

Sukanya Mohapatra 2G
Posts: 100
Joined: Sat Aug 17, 2019 12:18 am
Been upvoted: 1 time

### Re: Kp given instead of Kc

After converting units, use the ideal gas law.

Megan Cao 1I
Posts: 103
Joined: Sat Sep 07, 2019 12:18 am

### Re: Kp given instead of Kc

in order to convert pressure into moles, you would use the ideal gas law (PV=nRT)

Michellekim1H
Posts: 25
Joined: Wed Feb 20, 2019 12:17 am

### Re: Kp given instead of Kc

First, if given grams, then convert it to moles. Afterwards, input what you have as moles in the ideal gas law equation but rearrange it to get P alone.

Jesse H 2L
Posts: 58
Joined: Fri Aug 09, 2019 12:17 am
Been upvoted: 1 time

### Re: Kp given instead of Kc

Use PV=nRT

Anna Chen 1K
Posts: 104
Joined: Thu Jul 25, 2019 12:18 am

### Re: Kp given instead of Kc

Use PV=nRT to convert moles to pressure. Moles is represented by n and pressure is represented by P.