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Unit 8: Gases

TermDefinition
Pressure The amount of force exerted per unit area of a surface
Newton The SI unit for force
Barometer An instrument that measures atmospheric pressure
Millimeters of Mercury A unit of pressure
Atmosphere of Pressure The pressure of Earth's atmosphere at sea level ; exactly equivalent to 760 mm Hg
Pascal The SI unit of pressure
Partial Pressure The pressure of each gas in a mixture
Dalton's law of partial pressure The law that states that the total pressure of a mixture of gases is equal to the sum of the partial pressures of the component gases
Boyles Law The law that states that for a fixed amount of gas at a constant temperature
Absolute Zero The temperature at which all molecular motion stops
Charle's law The law that states that for a fixed amount of gas at a constant pressure
Gay-Lussac's law The law that states that the volume occupied by a gas at a constant pressure is directly proportional to the absolute temperature
Combined gas law The relationship between pressure, volume, and temperature of a fixed amount of gas
Avogadro's law The law that states that equal volumes of gases at the same temperature and pressure contain equal numbers of molecules
Standard molar volume of a gas The volume occupied by one mole of a gas at STP; 22.414
ideal gas law The law that states the mathematical relationship of pressure , volume, temperature, the gas constant, and the number of moles of a gas
ideal gas constant The proportionally constant that appears in the equation of state for 1 mol of an ideal gas
Graham's law of effusion The law that states that the rate of effusion of a gas is inversely proportional to the square roots of the gas's density
Created by: ar471216
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