4.2 Catalysts in chemical reactions

Question 1

describe a catalyst’s effect in terms of collision theory

Answer 1

more collisions have enough energy to exceed Ea > increases rate of reaction

Question 1

what a catalyst does

Answer 1

increases rate of reaction by providing an alternate reaction pathway with lower activation energy (Ea)

Question 2

homogeneous vs heterogeneous catalysts

Answer 2

homogeneous: same state as reactants

heterogeneous: different state to reactants