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Chapter 16.1-2-3 Chemistry Vocab Test

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5 Written Questions

5 Matching Questions

  1. Law of Disorder
  2. Joule
  3. Free Energy
  4. Chemical Potential Energy
  5. Thermochemical equation
  1. a SI unit of heat and energy (.2390 cals)
  2. b energy stored in a compound because of its composition
  3. c Gibbs free energy (Gsystem) - energy that is available to do work - useful energy
  4. d states that spontaneous processes always proceed in such a way that the entropy of the universe increases
  5. e balanced chemical equation that includes the physical states of all reactants and products, and the energy change, usually expressed as the change in enthalpy

5 Multiple Choice Questions

  1. the heat required to vaporize one mole of a liquid
  2. the change in enthalpy for a reaction
  3. ΔHf° defined as the change in enthalpy that accompanies the formation of one mol of the compound in its standard state from its constituent elements in the standard states
  4. heat content of a system at a constant pressure.
  5. amount of heat required to raise the temp of one gram of that substance by one degree Celsius

5 True/False Questions

  1. Universesystem + surroundings

          

  2. Hess's Lawenergy that is in the process of flowing from a warmer object to a cooler object.

          

  3. Spontaneous Processamount of heat required to raise the temp of one gram of that substance by one degree Celsius

          

  4. Heatability to do work or produce heat

          

  5. Molar Enthalpy of Fusionthe heat required to vaporize one mole of a liquid

          

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