The rates of effusion of gases are inversely proportional to the square roots of their molecular weights or densities.
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Use of diamonds
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Ozone
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xylic acid
Any of six colorless, crystalline, isomeric acids having the formula C9H10O2, derived from xylene.
Band
A series of very closely spaced, nearly continuous molecular orbitals that belong to the crystal as a whole.
Vapor
A gas formed by boiling or evaporating a liquid.
Leclanche Cell
A common type of dry cell.
Le Chatelier's Principle
States that a system at equilibrium, or striving to attain equilibrium, responds in such a way as to counteract any stress placed upon it.
If a stress (change of conditions) is applied to a system at equilibrium, the system shifts in the direction that reduces stress.
Beta Particle
Electron emitted from the nucleus when a neuton decays to a proton and an electron.
Kinetic-molecular Theory
A theory, that attempts to explain macroscopic observations on gases in microscopic observations on gases in microscopic observations on gases in microscopic or molecular terms.
Vapor Pressure
The particle pressure of a vapor at the surface of its parent liquid.
Law of Definite Proportions (Law of Constant Composition)
The law stating that a pure substance will always have the same percent by weight. Different samples of a pure compound always contain the same elements in the same proportions by mass.
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