CH-1676
Catalysts
Chemistry · Secondary 4 · Medium · Catalysts
In a rate experiment, a catalyst is added to a reaction mixture and the time taken for a visible change decreases from 30 s to 18 s. How does the catalyst increase the rate of reaction?
- It lowers the activation energy by providing an alternative pathway.
- It increases the activation energy so particles collide more often.
- It is used up to form more reactant particles.
- It raises the temperature of the reaction mixture.
Sign in to check your answer and see the hint and the worked explanation. Free on PrepLab High.