Chemistry- U10 Gas Laws

Standard temp and pressure

(STP)

____________ temp = 0 * Celsius

____________ pressure = 1 atm

Boyles Law

Volume is INVERSELY (oppositely) proportional to pressure if mass and temp are constant

**i.e If volume is INCREASING, pressure DECREASES

Boyles formula

V1P1 = V2P2

Charles Law

Volume and Temp are DIRECTLY RELATED when Pressure and Mass are constant

Charles formula

V1 / T1 = V2 / T2

Gay-Lussac’s Law

Pressure is DRIECTLY proportional to temperature if the GAS has a CONSTANT Mass and Volume

Gay-Lussac’s formula

P1 / T1 = P2 / T2

Combined Gas law

Relates volume, temp and pressure for a sample of gas

(assuming its ideal)

Combined Gas law formula

P1 x V1 / T1 = P2 x V2 / T2

Daltons law of partial pressure

The total pressure of a gas mixture is the sum of the partial pressures of the component gases

Partial Pressure

the PRESSURE of EACH GAS in a Mixture

DLPP formula

Ptotal = p1 + p2 + p3

Ideal gas law

The mathematical relationship among pressure, volume, temp, and # of moles of a gas.

Ideal gas law formula

PV = nRT

WHERE:

P= pressure

V = Volume in L

N = # of moles

R = Ideal gas constant

T = Temperature