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RSM Chp. Three

QuestionAnswer
solid has a definite shape and a definite volume
crystalline solid a solid with the particles forming a regular repeating pattern creating a crystal.
amorphous solid the particles are not arranged in a regular pattern
liquid has a definite volume but no shape of its own
fluid substance that flows (liquid or gas)
surface is the result of an inward pull among the molecules of a liquid that bring the molecules on surface closer together
viscosity a liquid's resistance to flowing depends on the size and shape of its particles and attraction between the particles.
gas is a fluid can change volume very easily
melting change in state from a solid to a liquid.
melting point in most pure substances melting occurs a a characteristic temperature
freezing the change from a liquid to a solid or the reverse of melting. The particles move so slowly that they begin to take on fixed position
vaporization the change from a liquid to a gas and the particles in a liquid gain enough energy to move independently.
evaporation when vaporization takes place only on the surface of a liquid
boiling occurs when liquid changes to a gas below it surface as well as at thesurface
boiling point the temperature a which a liquid boils
condensation is the change in state from a gas to a liquid
sublimation occurs when the surface particles of a solid gain enough energy form a gas
pressure of a gas is the force of its outward push divided by the area of the walls of the container measured in Pascals (Pa)
directly proportional when a graph of two variables is a straight line passing through the origin Charles Law
inversely proportional when the product of two variables is a constant Boyles Law
Created by: gayledains