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5 Written Questions

5 Matching Questions

  1. Specific Heat
  2. Standard enthalpy of formation
  3. Hess's Law
  4. Enthalpy of reaction
  5. System
  1. a amount of heat required to raise the temp of one gram of that substance by one degree Celsius
  2. b states 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
  3. c the specific part of the universe that contains the reaction or process that you wish to study
  4. d 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
  5. e the change in enthalpy for a reaction

5 Multiple Choice Questions

  1. energy stored in a compound because of its composition
  2. everything in the universe other than the system
  3. energy that is in the process of flowing from a warmer object to a cooler object.
  4. the heat required to vaporize one mole of a liquid
  5. Gibbs free energy (Gsystem) - energy that is available to do work - useful energy

5 True/False Questions

  1. Energymeasure of the disorder or randomness of the particles that make up a system


  2. Calorimeterinsulated device used for measuring the amount of heat lost or gained during a chemical or physical process


  3. calorieamount of heat required to raise the temperature of one gram of pure water by one degree Celsius


  4. Law of Disorderstates that spontaneous processes always proceed in such a way that the entropy of the universe increases


  5. Law of Conservation of Energyin any chemical reaction or physical process, energy can be converted from one form to another, but it is neither created nor destroyed


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