Chemistry Gas Laws

The general gas equation

PV=nRT

Standard Temperature Pressure

Temperature is at 0C or 273K. Pressure is always at 101325Pa or 1atm or 760mmHg

The pressure of a mixture of gasses is the sum of all the individual pressures

Dalton's Law

At a fixed temperatures, the volume of a gas is indirectly proportional to the pressure.

Boyle's Law

At a fixed volume, the pressure of any gas is directly proportional to the absolute temperature.

Gay-Lussac's Law

Kinetic Molecular theory of gases?

All particles are moving at constant random motion.The higher the temperature the faster they move. The forces of attraction and repulsion are practically zero. The volume of the particles is small compared to the volume the gas occupies, the particles are very far apart. As they collide with each other and the container they exert pressure, the collisions are perfectly elastic.

A mole of any gas at STP occupies 22.4L

Molar Gas Volume at STP

A mole of any gas at SLC occupies 24.5L

Molar Gas Volume at SLC

At a constant pressure, the volume of a fixed mass of gas is directly proportional to the absolute temperature.

Charles' Law

Temperature: 298K, pressure: 101325

Standard Laboratory Conditions