By increasing the temperature, the reactant particles gain more energy. This has a two-fold effect. Firstly, the reactant particles gain more kinetic energy, therefore they start to travel faster, resulting in a greater frequency of collision occurring. Secondly, increasing the temperature means a greater number of particles have the required activation energy to start the reaction. Both of these result in a greater proportion of successful collisions, increasing the rate of reaction and the rate of production. Increasing the temperature shifts the equilibrium in the direction of the endothermic reaction, in order for the reaction to absorb the increased temperature, thus producing more anhydrous copper sulphate.