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Defined as the force per unit area on a surface
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Pressure (P)
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The force that will increase the speed of a one-kilogram mass by one meter per second each second that the force is applied
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Newton (N)
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A device used to measure atmospheric pressure
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Barometer
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The common unit of pressure
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Millimeters of mercury (mm Hg)
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Defined as being exactly equivalent to 760 mm Hg
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One atmosphere of pressure
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Defined as the pressure exerted by a force of one newton (1 N) acting on an area of one square meter
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One pascal (Pa)
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The pressure of each gas in a mixture
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Partial pressure
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States that the total pressure of a gas mixture is the sum of the partial pressures of the component gases. expressed as Pt= P1 + P2 + P3...
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Dalton's law of partial pressures
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The temperature -273.15 degrees C and is given a value of zero in the Kelvin scale
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Absolute zero
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The pressure of a fixed mass of gas at constant volume varies directly with the Kelvin temperature. written as P/T = k
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Gay-Lussac's law
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Expresses the relationship between pressure, volume, and temperature of a fixed amount of gas. expressed as PV/T = k
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Combined gas law
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At constant temperature and pressure, the volume of gaseous reactants and products can be expressed as ratios of small whole numbers
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Gay-Lussac's law of combining volumes of gases
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The law states that equal volumes of gases at the same temperature and pressure contain equal numbers of molecules
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Avogadro's law
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The volume occupied by one mole of a gas at STP. it has been found to be 22.4 L
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Standard molar volume of a gas
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The mathematical relationship among pressure, volume, temperature, and the number of moles of a gas. written as PV = nRT
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Ideal gas law
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