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Chapter 14 Vocabulary Terms and Gas Laws
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Gravity
Terms in this set (12)
Boyle's Law
For a given mass of gas at a constant temperature, the volume of the gas varies interversely with pressure; P1xV1=P2xV2
Charle's Law
The volume of a fixed mass of gas is directly proportional to its Kelvin temperature if the pressure is kept constant; V1/T1=V2/T2
Combined Gas Law
The law that describes the relationship among the pressure, temperature, and volume of an enclosed gas; P1xV1/T1=P2xV2/T2
Compressibility
A measure of how much the volume of matter decreases under pressure.
Dalton's Law of Partial Pressures
At constant volume and temperature, the total pressure exerted by a mixture of gases is equal to the sum of the partial pressures of the component gases;
P total=P1+P2+P3+...
Diffusion
The tendency of molecules to move toward areas of lower concentration until the concentration is uniform throughout.
Effusion
The process that occurs when a gas escapes through a tiny hole in its container.
Gay-Lussac's Law
The pressure of a gas is directly proportional to the Kelvin temperature if the volume is constant; P1/T1=P2/T2
Graham's Law of Effusion
The rate of effusion of a gas is inversely proportional to the square root of its molar mass; this relationship is also true for the diffusion of gases; RateA/RateB=√molar massB/molar mass A
Ideal Gas Constant
The constant in the ideal gas law with the symbol R and the value of 8.31 L•kPa ⁄ K•mol or 0.08206 L•atm ⁄ mol •K.
Ideal Gas Law
The relationship PV=nRT, which describes the behavior of an ideal gas.PxV=nxRxT or PV=nRT
Partial Pressure
The contribution each gas in a mixture of gases makes to the total pressure.
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