Rates of ReactionDeep Dive

Deep Dive: Collision Theory

Part of Rates & Collision TheoryGCSE Chemistry

This deep dive covers Deep Dive: Collision Theory within Rates & Collision Theory for GCSE Chemistry. Revise Rates & Collision Theory in Rates of Reaction for GCSE Chemistry with 20 exam-style questions and 16 flashcards. This is a high-frequency topic, so it is worth revising until the explanation feels precise and repeatable. It is section 3 of 13 in this topic. Use this deep dive to connect the idea to the wider topic before moving on to questions and flashcards.

Topic position

Section 3 of 13

Practice

20 questions

Recall

16 flashcards

🔬 Deep Dive: Collision Theory

💥 The Rules of Successful Collisions

For a reaction to occur, particles must:

🎯

1. COLLIDE

Particles must physically hit each other

2. HAVE ENOUGH ENERGY

Energy ≥ activation energy (Ea)

Successful collision = Reaction happens

More successful collisions per second = Faster rate of reaction

Keep building this topic

Read this section alongside the surrounding pages in Rates & Collision Theory. That gives you the full topic sequence instead of a single isolated revision point.

Practice Questions for Rates & Collision Theory

According to collision theory, which of the following must happen for a chemical reaction to take place?

  • A. Particles must dissolve in water
  • B. Particles must collide with sufficient energy
  • C. Particles must be heated to 100 degrees C
  • D. Particles must be in the liquid state
1 markfoundation

Explain, using collision theory, why increasing the concentration of a reactant solution increases the rate of reaction.

2 marksstandard

Quick Recall Flashcards

What is rate of reaction?
How quickly reactants are used up or products are formed
What are the units for rate?
g/s, cm³/s, or mol/s

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