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5 Written Questions

5 Matching Questions

  1. calorie
  2. Enthalpy of combustion
  3. Law of Disorder
  4. Joule
  5. Energy
  1. a SI unit of heat and energy (.2390 cals)
  2. b amount of heat required to raise the temperature of one gram of pure water by one degree Celsius
  3. c states that spontaneous processes always proceed in such a way that the entropy of the universe increases
  4. d ability to do work or produce heat
  5. e of a substance is the enthalpy change for the complete burning of one mole of the substance

5 Multiple Choice Questions

  1. 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
  2. amount of heat required to raise the temp of one gram of that substance by one degree Celsius
  3. the change in enthalpy for a reaction
  4. heat required to melt one mole of a solid substance
  5. system + surroundings

5 True/False Questions

  1. Law of Conservation of Energystates that spontaneous processes always proceed in such a way that the entropy of the universe increases

          

  2. Entropymeasure of the disorder or randomness of the particles that make up a system

          

  3. Hess's Lawstates that if you can add two or more thermochemical equations to produce a final equation for a reaction, then the sum of the enthalpy changes for the individual reactions is the enthalpy change for the final reaction

          

  4. Free Energyability to do work or produce heat

          

  5. Heatenergy that is in the process of flowing from a warmer object to a cooler object.

          

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