understand that chemical reactions are accompanied by enthalpy changes and these changes can be exothermic (\(\Delta H\) is negative) or endothermic (\(\Delta H\) is positive)

explain qualitatively, in terms both of the Boltzmann distribution and of frequency of effective collisions, the effect of temperature change on the rate of a reaction

(a) understand what is meant by a reversible reaction (b) understand what is meant by dynamic equilibrium in terms of the rate of forward and reverse reactions being equal and the concentration of reactants and products remaining constant (c) understand the need for a closed system in order to establish dynamic equilibrium