Empirical Gas Laws

Relates pressure to volume

• Charles' law

• Guy-Lussac law

• Boyle's law

• molar gas constant

States that volume is proportional to temperature

• Boyle's law

• Charles' law

• Temperature (Guy Lussac) law

• none of the laws

States that volume is proportional to pressure

• Boyle's law

• Charles' law

• Temperature (Guy Lussac) law

• none of the laws

States that temperature is inversely proportional to mass

• Boyle's law

• Charles' law

• Temperature (Guy Lussac) law

• none of the laws

Requires mass of gas and temperature to be controlled

• Boyle's law

• Charles' law

• Temperature (Guy Lussac) law

• none of the laws

Requires pressure of gas and mass to be controlled

• Boyle's law

• Charles' law

• Temperature (Guy Lussac) law

• none of the laws

Draw and label a graph that illustrates Boyle's law

Empirical means that...

• The laws were discovered during the time of the British Empire

• The laws are derived from fundamental physics theory

• The laws were worked out experimentally

• The laws are true some of the time if you make certain assumptions

Sketch what a graph of Volume against temperature would look like when given in degrees celsius (assuming mass and pressure are constant)

Gases are called ideal because...

• They really are the best gases you can get

• The relationships remain true as long as certain assumptions are made

• Only gases with special properties will follow these laws

• Work has to be done in order to compress a gas at constant temperature