GAS LAWS

Question 1

BOYLES LAW

Answer 1

• If temperature remains constant, the volume of gas is
  inversely proportional to the absolute pressure
• Gas expands as pressure decreases – why a diver needs
  to exhale when ascending

Question 2

DALTONS LAW

Answer 2

• The pressure exerted by each gas in a mixture is the
  same pressure that the gas would exert if it alone
  occupied the same volume
• Gas expansion causes the partial pressure of oxygen to
  drop as gas molecules move father apart, reducing the
  available oxygen

Question 3

HENRYS LAW

Answer 3

• At a constant temperature, the solubility of a gas in a
  liquid solution is proportionate to the partial pressure of
  gas
• More gas can be dissolved into a liquid at higher
  pressure and vice versa