Skip to main content
-
-
12.1: Gases and Pressure
-
The atmosphere applies a pressure on the surface of the earth known as the atmospheric pressure. The barometer is used to measure the atmospheric pressure. The atmospheric pressure changes with altitude. Blood pressure is the pressure applied by the blood on the walls of the arteries.
-
-
12.2: Vapor Pressure
-
The vapor pressure is a measure of the pressure exerted by a gas above a liquid in a closed container. The boiling point of a liquid is the temperature at which the vapor pressure of the liquid equals the atmospheric pressure. Autoclaves, allows water to boil at high temperatures under high pressures. The high temperatures kill most infectious agents.
-
-
12.3: The Pressure-Temperature Law
-
The pressure of a gas is directly proportional to the temperature in the Kelvin scale provided the volume and amount of gas is not changed.
-
-
12.4: The Volume-Temperature Law
-
The volume of a gas is directly proportional to the temperature in the Kelvin scale provided the pressure and amount of gas is not changed.
-
-
12.5: The Pressure-Volume Law
-
The pressure of a gas is inversely proportional to the volume provided the temperature and amount of gas is constant.
-
-
12.6: The Combined Gas Law
-
The combined gas law is a combination of Boyle's, Charles', and the Gay-Lussac's law.
-
-
12.7: Henry's Law
-
The solubility of a gas in a liquid is proportional to the pressure of the gas over the liquid.
-
-
12.8: Partial Pressure and Dalton's Law
-
The partial pressure of a gas is the pressure that gas would exert if it occupied the container by itself. Dalton's law states that in a mixture of gases, the total pressure is the sum of the partial pressures of all the components. Gas exchange during respiration occurs primarily through diffusion.
-
-
12.9: End of Chapter Problems
-
This problem set is based on Chapter 12 topics.