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Chemical change


After this lesson, you should be able to:

  • State Le Chatelier’s principle
  • Use Le Chatelier’s principle to explain  the effect of change in pressure, temperature and concentration on the amounts and concentrations of substances
  • Describe the role and use of a catalyst in an equilibrium mixture
  • Interpret simple equilibrium graphs
  • Apply the rate and equilibrium principles to important industrial applications:
  • The Haber process for manufacturing ammonia
  • The contact process for manufacturing sulfuric acid
  • The Ostwald process for manufacturing nitric acid

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