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5 Written questions

5 Matching questions

  1. melting point
  2. evaporation
  3. melting
  4. freezing
  5. freezing point
  1. a Physical change of a solid to a liquid by adding of heat
  2. b Solidification
  3. c temperature at which the solid and liquid are in equilibrium at 1 atm
  4. d Process by which particles escape from the surface of a nonboiling liquid and enter the gas state
  5. e Temperature at which a solid becomes a liquid

5 Multiple choice questions

  1. Change of state from a gas directly to a solid
  2. Liquids that evaporate readily
  3. graph of pressure versus temperature that shows the conditions under which the phases of a substance exist
  4. A dynamic condition in which two opposing changes occur at equal rates in a closed system
  5. change of state from a solid directly to a gas

5 True/False questions

  1. equilibrium vapor pressurepressure exerted by a vapor in equilibrium with its corresponding liquid at a given temperature


  2. phaseAny part of a system that has uniform composition and properties


  3. surface tensionForce that tends to pull adjacent parts of a liquid's surface together


  4. diffusionChange of state from a gas directly to a solid


  5. crystalline solidSubstance in which the particles are arranged in an orderly, geometric, repeating pattern


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