Which of the following statements is false? a. with all else being equal, the higher the value of ea, the slower the reaction. b. as temperature increases, the activation energy decreases. c. a catalyst speeds up a reaction by providing an alternative mechanism with a lower activation energy d. for a typical reaction at room temperature with an activation energy of about 50 kj/mol, a 10 ºc rise in temperature leads to an approximate doubling of the rate. e. as temperature increases, the number of collisions between reactants also increases.