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CH4 Vocabulary


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  • Absolute temperature scale
  • Absolute zero-The zero point on the absolute temperature scale; -273.15°C or 0 K
  • Boyle's law-At constant temperature the volume occupied by a definite mass of a gas is inversely proportional to the applied pressure.
  • Celsius-
  • Charles law-At constant pressure the volume occupied by a definite mass of gas is directly proportional to its absolute temperature
  • Collisions-
  • Density of water-Mass per unit Volume: D=MV
  • Diffusion-
  • Directly proportional
  • Effusion-the rate at which a gas escapes through an orifice or hole.
  • Fluids-Substances that flow freely like gases and liquids
  • Gas laws-
  • Grahams law-The rates of effusion of gases are inversely proportional to the square roots of their molecular weights or densities.
  • Gravity-
  • Heat-A form of energy that flows between two samples of matter because of their differences in temperature.
  • Homogeneous-A substance or material that contains only one kind of compound or one element.
  • Ideal gases-hypothetical gases that obey exactly all postulates of the kinetic-molecular theory
  • Intermolecular forces-Forces between individual particles (atoms, molecules, ions) of a substance.
  • Inversely proportional relationships-
  • Kelvin-the temperature scale used in chemistry (-273k)
  • Kinetic energy-Energy that matter processes by virtue of its motion
  • 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
  • Mixtures-samples of matter composed of two or more substances
  • Monatomic gas-elements that are present in the gaseous state as single atoms (noble gases)
  • Pressure-
  • Pure
  • Random motion
  • Rate of diffusion
  • Standard Temperature & Pressure (STP)- 0°C and 1 atmosphere.
  • The ideal gas law-The product of pressure and the volume of an ideal gas is directly proportional to the number of moles of the gas and the absolute temperature.
  • Universal gas constant-
  • Volume
  • Water pressure



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