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6. The rate equation is:

  • the rate of change of concentration of a reactant or product with time
  • the equation showing how the rate depends on the concentrations
  • the time taken for the the of a reactant to fall to half of its original value

7. Which variable affects the value of k?

  • Pressure
  • Catalyst
  • Concentration

8. For 0 order reactions, the units of k are:

  • mol.dm-3 s-1
  • s-1
  • mol-1 dm3 s-1

9. For 1st order reactions, how does the half life of A change as the reaction proceeds?

  • Stays Constant
  • Increases
  • Decreases