Brock+Combined

The reason why the combined gas law is named the way it is, is because it utilizes all of the different equations into one.

The equation for this is: PV/T=k

They stand for: P = pressure V = volume T = temperature k = constant Example problem:

The volume of an unkown gas is 40 mL at 30 C and .974 atm, what will the volume be at 12 C and .989 atm ? so we must isolate the volume, by multiplying each side by T and 1/P.

Then we have to plug in the numbers: __.974 x 40 mL x 285 K__ = 37 mL 303 K x .989 atm Home Page