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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
Pascal the SI unite 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 partial pressures of the component gases
Boyles Law the law that states that for a fixed amount of gas at a constant temperature, the volume of the gas increases as the pressure of the gas decreases and the volume of the gas decreases as the pressure of the gas increases
Absolute Zero the temperature at which all molecular motion stop ( 0 K on the Kelvin scale or - 273.16 on the Celsius scale)
Charle's law the law that states that for a fixed amount of gas at a constant pressure, the volume of the gas increase as the temperature of the gas increases and the volume of the gas decreases as the temperature of the gas decreases
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 the pressure, volume, and temperature of a fixed amount of gas
Avogadro's law the law that states that equal volume 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 ( found to be 22.414 10 L )
ideal gas law the law that states the mathematical relationship of pressure(P)Volume(V),temperature(T),the gas constant(R) and the number of moles of gas (n)
ideal gas constant the proportionality constant that appears in the equation of state for 1mol 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 root of the gas's density
Created by: Laysia
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