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Chem II Ch 12 Voc

Chemistry II Chapter 12 Vocabulary

QuestionAnswer
Kinetic-Molecular Theory describes the behavior of matter in terms of particles in motion.
Elastic Collision is one in which no kinetic energy is lost.
Temperature is a measure of the average kinetic energy of the particles in a sample of matter.
Diffusion is the term used to describe the movement of one material through another.
Graham’s Law of Effusion states that the rate of effusion for a gas is inversely proportional to the square root of its molar mass.
Pressure is defined as force per unit area.
Barometer is an instrument used to measure atmospheric pressure.
Dalton’s Law of Partial Pressures states that the total pressure of a mixture of gases is equal to the sum of the pressures of all the gases in the mixture.
Viscosity is a measure of the resistance of a liquid to flow.
Surface Tension the energy required to increase the surface area of a liquid by a given amount.
Crystalline Solid is a solid whose atoms, ions, or molecules are arranged in an orderly, geometric structure.
Amorphous Solid is one in which the particles are not arranged in a regular, repeating pattern.
Melting Point of a crystalline solid is the temperature at which the forces holding its crystal lattice together are broken and it becomes a liquid.
Vapor Pressure the pressure exerted by a vapor over a liquid.
Boiling Point the temperature at which the vapor pressure of a liquid equals the external or atmospheric pressure.
Freezing Point is the temperature at which a liquid is converted into a crystalline solid.
Deposition is the process by which a substance changes from a gas or vapor to a solid without first becoming a liquid.
Phase Diagram is a graph of pressure versus temperature that shows in which phase a substance exists under different conditions of temperature and pressure.
Sublimation is the process by which a substance changes from a solid to gas without becoming a liquid.
Created by: jepva
 

 



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