## pv = nRT purpose

$PV=nRT$

Mallika Singh 1G
Posts: 99
Joined: Sat Aug 24, 2019 12:16 am

### pv = nRT purpose

When do we use this formula?

Osvaldo SanchezF -1H
Posts: 122
Joined: Wed Sep 18, 2019 12:21 am

### Re: pv = nRT purpose

When we have concentration and if they are gases we wish to convert the concentrations given into pressure or it could be the other way around but for most problems we will use it to find the pressure of molecules when given the concentration when we wish to find Kp.

ckilkeary 2G
Posts: 68
Joined: Fri Aug 09, 2019 12:16 am

### Re: pv = nRT purpose

I know that so far in lectures we have used this formula to convert between partial pressure and concentration. Other than that I don't think we've been given more reasons to use the formula.

Sofia Barker 2C
Posts: 101
Joined: Wed Sep 18, 2019 12:21 am

### Re: pv = nRT purpose

This formula can be used to convert partial pressure to molar concentration. PV = nRT can be rewritten as n/V = P/rT, with n/V representing moles per unit volume, or molarity.

Eunice Nguyen 4I
Posts: 100
Joined: Sat Aug 17, 2019 12:17 am

### Re: pv = nRT purpose

This is the ideal gas law; you would use this equation when you're given three of the four properties of a gas: pressure, volume, number of moles, and temperature.

Michelle N - 2C
Posts: 117
Joined: Wed Sep 18, 2019 12:19 am

### Re: pv = nRT purpose

Like what others said, so far we've used this formula to convert between pressure and concentration. I think we'll also be using it to understand conceptual parts, like what happens to the concentration if the pressure increases/decreases/etc. But as of right now, we've only used it for conversion.