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Gas concentration

Posted: Tue Nov 21, 2017 11:57 pm
by Deborah Cheng 1F
How do you find the concentration of a gas given the partial pressure?

Re: Gas concentration

Posted: Wed Nov 22, 2017 12:00 am
by Nancy Le - 1F
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)

Re: Gas concentration

Posted: Wed Nov 22, 2017 6:21 pm
by Michelle Pham_3H
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.