Gas Laws
boyles_law_graph.gif
Boyle's Law Graph. As the pressure increases, the volume decreases. As the volume increases, the pressure decreases.

Formulas to Know:
1. K=PV
2. K=V/T
3. K=P/T
4. K=PV/T
5. K=V/n
6. Tpressure = Tpartial pressure + Tpartial pressure
7. PV=nRT
K= constant number
T=temperature in Kelvin
V=volume
P=pressure
n=number of moles


1. BOYLE'S LAW
Relates volume to pressure. As volume decreases, pressure increases. Volume and pressure are inversely proportional.
P1V 1=P2V 2
K=PV

2. CHARLES'S LAW
Relates volume to temperature. As temperature increases, volume increases. Temperature and volume are directly proportional.
V1/T1=V2/T2
K=V/T

3. GAY-LUSSAC'S LAW
Relates pressure to temperature. As temperature increases, pressure increases. Temperature and pressure are directly proportional.
P1/T1=P2/T2
K=P/V
partialpressure
Dalton's Law of Partial Pressures.

4. THE COMBINED GAS LAW
Relates pressure, volume, and temperature.

P1V1/T1 = P2V2/T2
K=PT/V


5. AVAGADRO'S LAW
Relates volume to number of moles.
V1/n1 = V2/n2
K=V/n

6. DALTON'S LAW OF PARTIAL PRESSURES
The total pressure of a system is equal to the sum of the partial presures in that system.
Tpressure=Tpartial pressure+Tpartial pressure

7. IDEAL GAS LAW
Relates all variables. (P, V, T, n)
PV=nRT
R= .082 and is the ideal gas constant. Temperature is in Kelvin. n is number of moles. Volume is liters. Pressure is atmospheres.