Gas concentration

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Deborah Cheng 1F
Posts: 50
Joined: Thu Jul 13, 2017 3:00 am

Gas concentration

Postby Deborah Cheng 1F » Tue Nov 21, 2017 11:57 pm

How do you find the concentration of a gas given the partial pressure?

Nancy Le - 1F
Posts: 52
Joined: Fri Sep 29, 2017 7:07 am

Re: Gas concentration

Postby Nancy Le - 1F » Wed Nov 22, 2017 12:00 am

To convert between partial pressure and concentration of a gas, you would use the Ideal Gas Law: PV=nRT.
Simplifying the equation would give: concentration=P/(RT)

Michelle Pham_3H
Posts: 26
Joined: Fri Sep 29, 2017 7:07 am

Re: Gas concentration

Postby Michelle Pham_3H » Wed Nov 22, 2017 6:21 pm

The concentration is equal to n/v since it is moles of substance over its volume. So when you rearrange the equation from PV = nRT, n/V = P/RT. n is the moles of gas, V is the volume of gas, P is is the pressure of the gas, R is the gas constant, and T is the absolute temperature of the gas.


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