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5 Written questions

5 Matching questions

  1. Spontaneous Process
  2. Thermochemical equation
  3. Specific Heat
  4. Energy
  5. Enthalpy (H)
  1. a heat content of a system at a constant pressure.
  2. b a physical or chemical change that occurs with no outside intervention
  3. c ability to do work or produce heat
  4. d balanced chemical equation that includes the physical states of all reactants and products, and the energy change, usually expressed as the change in enthalpy
  5. e amount of heat required to raise the temp of one gram of that substance by one degree Celsius

5 Multiple choice questions

  1. in any chemical reaction or physical process, energy can be converted from one form to another, but it is neither created nor destroyed
  2. heat required to melt one mole of a solid substance
  3. measure of the disorder or randomness of the particles that make up a system
  4. states that spontaneous processes always proceed in such a way that the entropy of the universe increases
  5. SI unit of heat and energy (.2390 cals)

5 True/False questions

  1. Enthalpy of reactionthe change in enthalpy for a reaction

          

  2. Hess's Lawenergy that is in the process of flowing from a warmer object to a cooler object.

          

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

          

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

          

  5. Standard enthalpy of formationheat required to melt one mole of a solid substance