Temperature will change the Keq. The rate constant is changed by many factors such as temperature, solvents, steric interactions, catalysts, even pressure. Remember.....a catalyst will do 4 main things... 1. Lower the Energy of Activation of the Forward Reaction 2. Lower the Energy of Activation of the reverse reaction 3. Lower the energy of the Transition State. 4. Provide an ALTERNATE mechanism path. Hope this helps.