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5 Written questions

5 Matching questions

  1. Thermochemistry
  2. Calorimeter
  3. Law of Disorder
  4. Enthalpy of reaction
  5. System
  1. a states that spontaneous processes always proceed in such a way that the entropy of the universe increases
  2. b the specific part of the universe that contains the reaction or process that you wish to study
  3. c insulated device used for measuring the amount of heat lost or gained during a chemical or physical process
  4. d the change in enthalpy for a reaction
  5. e the study of heat changes that accompany chemical reactions and phase changes

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. in any chemical reaction or physical process, energy can be converted from one form to another, but it is neither created nor destroyed
  3. heat required to melt one mole of a solid substance
  4. ability to do work or produce heat
  5. Gibbs free energy (Gsystem) - energy that is available to do work - useful energy

5 True/False questions

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

          

  2. Universesystem + surroundings

          

  3. Heatthe specific part of the universe that contains the reaction or process that you wish to study

          

  4. 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

          

  5. Chemical Potential Energyenergy stored in a compound because of its composition

          

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