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5 Written questions

5 Matching questions

  1. System
  2. Surroundings
  3. Enthalpy of combustion
  4. Law of Conservation of Energy
  5. Thermochemical equation
  1. a of a substance is the enthalpy change for the complete burning of one mole of the substance
  2. b balanced chemical equation that includes the physical states of all reactants and products, and the energy change, usually expressed as the change in enthalpy
  3. c the specific part of the universe that contains the reaction or process that you wish to study
  4. d everything in the universe other than the system
  5. e in any chemical reaction or physical process, energy can be converted from one form to another, but it is neither created nor destroyed

5 Multiple choice questions

  1. insulated device used for measuring the amount of heat lost or gained during a chemical or physical process
  2. heat content of a system at a constant pressure.
  3. a physical or chemical change that occurs with no outside intervention
  4. heat required to melt one mole of a solid substance
  5. system + surroundings

5 True/False questions

  1. 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

          

  2. Molar Enthalpy of vaporizationthe heat required to vaporize one mole of a liquid

          

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

          

  4. Jouleenergy that is in the process of flowing from a warmer object to a cooler object.

          

  5. Free Energyability to do work or produce heat