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Chapter 5 – Practice Problems (Enthalpy)

  1. Define energy. How is work related to energy?
  2. Give two units of energy and indicate which one is preferred.
  3. Express the quantity of 422 J in calories.
  4. Express the quantity of 3.225 kJ in calories.
  5. Express the quantity 55.69 cal in joules.
  6. Express the quantity 965.33 kcal in joules.
  7. How does a Calorie differ from a calorie?
  8. Express the quantity 965.33 Cal in joules.
  9. What is the law of conservation of energy?
  10. What does the word conserved mean as applied to the law of conservation of energy?

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