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Effect of using a Catalyst Simplified Revision Notes

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Effect of using a catalyst

Effect of using a catalyst

Effect of using a catalyst

Definition:

  • A catalyst is a substance that speeds up a chemical reaction without being consumed in the process.

Importance:

  • Catalysts play a crucial role in increasing the rate of chemical reactions while remaining unchanged themselves.

Catalyst's Surface:

  • Catalysts provide a surface where reactions can occur.

Enhanced Collision Angles:

  • The catalyst's surface holds reactant molecules at a favourable angle for collisions.
  • This increases the likelihood of successful collisions and reaction initiation.

Effect on Reaction Rate:

  • Faster Reactions: Catalysts accelerate reactions by lowering the activation energy required.
    • They provide an alternative reaction pathway with a lower energy barrier.
    • Example: Enzymes in our bodies act as catalysts, speeding up digestion and other biological processes.
  • Efficiency: Catalysts make reactions more efficient, allowing for more product formation in less time.

Applications:

  • Catalytic converters in cars reduce harmful emissions.
  • Industrial catalysts in chemical plants enhance the production of various products.
  • Enzymes in food processing improve the efficiency of food production.

Effect of using a catalyst

Catalyst diagram

Catalyst energy diagram

Summary:

  • Catalysts are substances that speed up reactions by providing a surface for favourable collisions. They lower the activation energy barrier, making reactions more efficient and allowing them to occur more rapidly. Catalysts have numerous applications, from environmental protection to industrial processes and biological reactions.
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