Top Tips for Success (6)

Here is an equation you are familiar with regarding an equilibrium reaction. Underneath it is a correct and an incorrect expression for Kc.

How many mistakes can you spot for the incorrect expression? What are the mistakes? Answers below please.

1 Comment
  • Stephen Owen
    June 3, 2012

    – The numbers in Kc expression must be concentrations – () implies partial pressures without specifying concentration
    – [NH3] isn’t squared
    – [H2] is cubed inside the bracket – ameaningless mathematical opperation
    – state symbols of gases omitted

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