Raising the temperature of a chemical reaction usually results in a higher rate of reaction. When the reactant particles are heated, they move faster and faster. This results in a greater frequency of collisions. A more important effect of the temperature increase is that the collisions occur with a greater force and are thus more likely to surmount the activation energy barrier and go on to form products. Increasing the temperature of a reaction increases the number of effective collisions between reacting particles, so the reaction rate increases.
Janet is baking cookies for her daughter's birthday party. She has so many cookies to bake that she decides to bake two batches at once using separate ovens. Janet asks her neighbor if she can use her oven for one batch, and uses her own oven for the other batch. Janet sets the oven temperature on both stoves to 375 degrees and begins baking the cookies. However, after she leaves her neighbors house, the oven temperature is accidentally increased to 475.
Will the cookies in the neighbor's oven cook faster or slower than the cookies in Janet's oven?