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One Atomosphere

pressure caused by the weight of the atmosphere. at sea level, it has a mean value of one atmosphere but reduces with increasing latitude

One mm of Hg

a unit of pressure equal to o.oo1316 atm

One Pascal

a unit of pressure equal to one newton per square meter


a unit of pressure; the pressure that will support a column of mercury 760 mm high at sea level

Absolute Zero

the theoretical temperature at which substances possesses no thermal energy to -273.15°C or -459.67°F

The Kelvin Temperature Scale

an international temperature scale whih agrees with the Kelvin absolute temperature scale within the limits of eperimental determination

Direct Proportion

the relation between quanties whoes ratio remains constant, when A changes, then also B changes by the same factor.

Inverse Proportion

the relationship between two quantities trough factors that are multiplicative inverse

Combined Gas Law

the law that describes the relationship among the pressure temperature and the volume of an enclosed gas

Boyle's Law

the principle that a constant temperature of the volume of a confined ideal gas varies inversely with its pressure

Charle's Law

the principle that the volume of a given mass of ideal gas is proportional to its temperature as long as its pressure remains constant

Amontons' Law

The same law as Gay-Lussaac's Law

Dalton's Law of Partial Pressures

the principle that the pressure exerted by a mixture of gasses in a fixed volume is equal to the sum of the pressures that each gas would exert of it scoupled the whole volume

Grahm's Law

the princiole that the rates of diffusion and effusion of a gas are inversely proportional to the square root of its density

Avgatro's Law

two equal volumes of gas at the same temperature and pressure, contain the same number of molecules

The "Molar Volume"

the volume ocupied by one mole of ideal gas at STP 22.414 mL

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