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5 Written questions

5 Matching questions

  1. Chemical Potential Energy
  2. Free Energy
  3. calorie
  4. Molar Enthalpy of Fusion
  5. Law of Disorder
  1. a heat required to melt one mole of a solid substance
  2. b Gibbs free energy (Gsystem) - energy that is available to do work - useful energy
  3. c states that spontaneous processes always proceed in such a way that the entropy of the universe increases
  4. d amount of heat required to raise the temperature of one gram of pure water by one degree Celsius
  5. e energy stored in a compound because of its composition

5 Multiple choice questions

  1. 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
  2. energy that is in the process of flowing from a warmer object to a cooler object.
  3. balanced chemical equation that includes the physical states of all reactants and products, and the energy change, usually expressed as the change in enthalpy
  4. the change in enthalpy for a reaction
  5. heat content of a system at a constant pressure.

5 True/False questions

  1. 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

          

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

          

  3. Molar Enthalpy of vaporizationheat required to melt one mole of a solid substance

          

  4. Thermochemistrythe study of heat changes that accompany chemical reactions and phase changes

          

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

          

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