CATALYSTS
CLASS 9 & 10 · CHEMISTRY
Catalyst: The Shortcut
energy
reactants
products
high Ea (no catalyst)
lower Ea (catalyst)
MnO₂ (still there!)
H₂O₂ → H₂O + O₂
STEP 1
prostudypk.com · free MCQ tests
REMEMBER
Lower Ea → faster
Catalysts speed up, never get used up
Enzymes are biological catalysts
Used in car exhausts and industry
Free test → prostudypk.com
CLASS 9 & 10 · CHEMISTRY
How do you speed up a reaction without heating it?
Catalysts in 25 seconds
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