3(c) Reversible reactions and equilibria

(c) Reversible reactions and equilibria (Content in blue is not required for Double Award Science)
3.17 know that some reactions are reversible and this is indicated by the symbol in equations
3.18 describe reversible reactions such as the dehydration of hydrated copper(II) sulfate and the effect of heat on ammonium chloride
3.19C know that a reversible reaction can reach dynamic equilibrium in a sealed container
3.20C know that the characteristics of a reaction at dynamic equilibrium are:

  • the forward and reverse reactions occur at the same rate
  • the concentrations of reactants and products remain constant
3.21C understand why a catalyst does not affect the position of equilibrium in a reversible reaction
3.22C know the effect of changing either temperature or pressure on the position of equilibrium in a reversible reaction