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Unit 8: Gases

TermDefinition
pressure is defined as the force per unit area on a surface
Newton is the force that will increase the speed of a one-kilogram mass by one meter per second each second is applied
Barometer is a device used to measure atmospheric pressure
Millimeters of Mercury thus, the common unit of pressure is millimeters of mercury, symbolized mm Hg.
Atmosphere of Pressure (atm) is defined as being exactly equivalent to 760 mm Hg
Pascal is defined as the pressure exerted by a force of one newton acting on an area of one square meter
Partial Pressure the pressure of each gas in a mixture is called the partial pressure of that gas
Dalton's law of partial pressure states that the total pressure of a gas mixture is the sum of the partial pressures os the componet gases
Boyles Law states that the volume of a fixed mass of gas varies inversely with the pressure at constant temperature
Absolute Zero the lowest possible achievable temperature, is assigned the value of zero on the kelvin temperature scale
Charle's law states that the volume of a fixed mass of gas at constant pressure varies directly with the temperature in kelvins
Gay-Lussac's law the pressure of a fixed mass of gas at constant volume varies directly with the temperature in kelvins
Combined gas law expresses the relationship between pressure, volume, and temperature of a fixed amount of gas
Avogadro's law states the equal volumes of gasses 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 STP is known as the standard molar volume of a gas. It has been found to be 22.414 10 L.
ideal gas law is the mathematical relationship among pressure, vokume, temperature, and the number of moles of a gas
ideal gas constant in the equation representing the ideal gas law, the constant R is known as the ideal gas constant
Graham's law of effusion states that the rates of effusion of gases at the same temperature and pressure are inversly proprtional to the sqaure roots of thier molar masses
Created by: js356300
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