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5 Written questions

5 Matching questions

  1. Heat
  2. Enthalpy (H)
  3. Law of Conservation of Energy
  4. calorie
  5. Standard enthalpy of formation
  1. a 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. b in any chemical reaction or physical process, energy can be converted from one form to another, but it is neither created nor destroyed
  3. c energy that is in the process of flowing from a warmer object to a cooler object.
  4. d heat content of a system at a constant pressure.
  5. e amount of heat required to raise the temperature of one gram of pure water by one degree Celsius

5 Multiple choice questions

  1. measure of the disorder or randomness of the particles that make up a system
  2. 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. the specific part of the universe that contains the reaction or process that you wish to study
  4. a physical or chemical change that occurs with no outside intervention
  5. heat required to melt one mole of a solid substance

5 True/False questions

  1. Joulethe specific part of the universe that contains the reaction or process that you wish to study

          

  2. Free Energyability to do work or produce heat

          

  3. Universeability to do work or produce heat

          

  4. Enthalpy of reactionof a substance is the enthalpy change for the complete burning of one mole of the substance

          

  5. Thermochemistrybalanced chemical equation that includes the physical states of all reactants and products, and the energy change, usually expressed as the change in enthalpy