Question #57b80

1 Answer
May 9, 2017

(PV)/(T) = (PV)/(T)PVT=PVT : Combined Gas Law

Not sure if the psi value you were given is psia or psig. If it's psig, make sure you add 14.7 to make it absolute!

I add 273.15 to the temperature to convert it from celsius to kelvin (Kelvin is absolute. You need to use absolute values when working with gases, unfortunately)

(40 * 0.85)/273.15 = (x*0.85)/(308.15)400.85273.15=x0.85308.15

(34)/273.15 = (x*0.85)/(308.15)34273.15=x0.85308.15

0.124474 = (0.85x)/308.150.124474=0.85x308.15

38.35658 = 0.85x38.35658=0.85x

x=45.12538898x=45.12538898

You can plug xx back in to check. If your equation works out (both sides are equal), you did it right! (Which I did, and it works)

Hope this helps!