Chemical Equilibria structured questions · GCE A-Level H1 Chemistry

Learning objectives

• explain, in terms of rates of the forward and reverse reactions, what is meant by a reversible reaction and dynamic equilibrium
• state Le Chatelier’s Principle and apply it to deduce qualitatively (from appropriate information) the effects of changes in concentration, pressure or temperature, on a system at equilibrium
• deduce whether changes in concentration, pressure or temperature or the presence of a catalyst affect the value of the equilibrium constant for a reaction
• deduce expressions for equilibrium constants in terms of concentrations, Kc
• calculate the values of equilibrium constants in terms of concentrations from appropriate data
• calculate the quantities present at equilibrium, given appropriate data (such calculations will not require the solving of quadratic equations)
• describe and explain the conditions used in the Haber process, as an example of the importance of an understanding of chemical equilibrium in the chemical industry