5.5.4 - Catalysts
Enroll to start learning
You’ve not yet enrolled in this course. Please enroll for free to listen to audio lessons, classroom podcasts and take practice test.
Practice Questions
Test your understanding with targeted questions
What is a catalyst?
💡 Hint: Think about what happens to the catalyst after the reaction.
Give one example of a catalyst.
💡 Hint: Consider substances that help in reactions but are not used up.
4 more questions available
Interactive Quizzes
Quick quizzes to reinforce your learning
What is the main function of a catalyst?
💡 Hint: Think about how catalysts influence the speed of reactions.
Enzymes are examples of what kind of catalysts?
💡 Hint: Remember how enzymes facilitate processes in living organisms.
2 more questions available
Challenge Problems
Push your limits with advanced challenges
Given that the activation energy without a catalyst is 100 kJ/mol and with a catalyst is 40 kJ/mol, calculate the percentage reduction in activation energy.
💡 Hint: Remember to subtract the two values and divide by the original activation energy!
Design an experiment to test the effect of temperature on the rate at which an enzyme works. What factors need to be controlled?
💡 Hint: Think about what environmental conditions can affect biochemical reactions!
Get performance evaluation
Reference links
Supplementary resources to enhance your learning experience.