Gas+Laws

[|Boyles Law Animation]

[|Charles Law Animation]

[|Gases Tutorial]

There are four main gas laws.
 * Boyles Law PV = PV
 * Charles Law V/T = V/T
 * Combined Gas Law PV/T = PV/T
 * Ideal Gas Law PV = nRT

Temperature needs to be in Kelvin (add 273 to celcius)

Pressure is typically in atmospheres or atm

Volume is typically in liters

R is a Gas Constant--a set numerical value that does not change as long as the units do not change. If you are working with torr rather than atm then the R value is different.

n is the number of moles so if given grams of a compound convert it to moles.

Moles can be converted to liters using 22.4 L = 1 mole conversion.

Most AP problems are more than one step and do NOT start at simply plugging the numbers into the formulas.