Question

If I have an Unknown Quantity of gas at a pressure at 121.6kPa, a volume of 31 liters, and a temperature of 87 degrees Celsius, how many moles of gas do I have?

I would like to know how find the mole of gas. Thank You

Answer 1

`n_"gas"~=1*mol`

Explanation:

We solve the Ideal Gas equation for `n=(PV)/(RT)`...

`=(121.6*kPaxx31*L)/(8.314(L* kPa)/(K*mol)xx360.15*K)=??*mol`

Note that I converted the Celsius temperature into the required absolute temperature. I also used an appropriate gas constant...the which should be supplied to you. Note that the quotient gave me an answer with UNITS of `1/(mol^-1)=1/(1/(mol))=mol` AS WAS REQUIRED...