3.2.2 reaction rates

rate

change in conc/time

increase in temp=more kinetic energy = __ collisions

more frequent

increases surface area=greater sa:v = more surfaces for collisions____ of collisions

higher frequency

an increase in concentration=more particles in the same volume=particles are closer together=more successfully collisions=___ rate of reaction

increased

increases the reaction rate without being used up by the overall reaction by allowing the reaction to proceed via a different route with a lower activation energy

catalyst

a catalyst that has the same physical state as the reactants

homogeneous catalysts

a catalyst that has a different physical state from the reactants

heterogeneous catalysts

lower peak and area above Ea is bigger

Ea is the same, shape of the curve changes

increased temp

shape the same, position of Ea moves downwards

catalyst