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Unit 8

Gases

TermDefinition
pressure Defined as the force per unit area on a surface
Newton the force that will increase the speed of a one-kilogram mass by one meter per second each second that the force is applied
Barometer Device used to measure atmospheric pressure
Millimeters of mercury common unit of pressure using mmHg
Atmosphere of Pressure exactly equivalent to 760 mmHg
Pascal pressure exerted by force of one newton acting on an area of one square meter
Partial Pressure the pressure if each gas in a mixture
Dalton's law of partial pressure total pressure of the gas mixture is the sum of partial pressure of the component gases.
Boyles Law the volume of a fixed mass of gas varies inversely with the pressure at constant pressure
Absolute Zero the lowest possible achievable temperature, is assigned the value of zero on the kelvin temperature scale
Charle's law the volume of fixed mass of a constant pressure varies directly with the temperature in kelvins
Gay-Lussac's law volume occupied by a gas at constant a constant pressure is directly proportional to the absolute temperature.
Combined gas law the relationship between the pressure, and temperature of a fixed amount of gas
Avogadro's law equal volumes of gas 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
ideal gas law mathmatical relationship of pressure is PV= nRT
ideal gas constant the porportionality constant that appears in the equation of state for 1 mole of an ideal gas
Graham's law of effusion the rate of effusion of gas is inversely proportionally to square the root of the gas's density
Created by: kroland07
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