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 25 exam-style questions and 16 flashcards. This topic appears less often, but it can still be a useful differentiator on mixed-topic papers. It is section 3 of 14 in this topic. Use this deep dive to connect the idea to the wider topic before moving on to questions and flashcards.
🔬 Deep Dive: Collision Theory
For a reaction to occur, particles must:
| Condition 1 | Condition 2 |
|---|---|
| COLLIDE — particles must physically hit each other | HAVE ENOUGH ENERGY — energy must be ≥ activation energy (Ea) |
Successful collision = Reaction happens. More successful collisions per second = faster rate of reaction.
Practice questions for Rates & Collision Theory
According to collision theory, which of the following must happen for a chemical reaction to take place?
Explain, using collision theory, why increasing the concentration of a reactant solution increases the rate of reaction.