Rates of ReactionDiagram

Successful vs Unsuccessful Collisions

Part of Rates & Collision Theory · GCSE GCSE Chemistry revision

This diagram covers Successful vs Unsuccessful Collisions 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 2 of 14 in this topic. Focus on the labels, the relationships between parts, and the explanation that turns the diagram into an exam-ready answer.

Topic position

Section 2 of 14

Practice

20 questions

Recall

16 flashcards

💥 Successful vs Unsuccessful Collisions

Two-panel diagram: left panel shows slow particles (blue and red spheres) colliding with insufficient energy — they bounce apart unchanged. Right panel shows fast particles colliding with high energy — golden starburst at impact point, green product particles emerge. GCSE Chemistry revision — collision theory.

Figure 1: Successful collisions (right) require sufficient energy to overcome the activation energy threshold

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.

The Chemistry of Speed Deep Dive: Collision Theory How Collision Theory Explains Rate Measuring 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?

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 are the units for rate?

g/s, cm³/s, or mol/s

What is rate of reaction?

How quickly reactants are used up or products are formed

20 questions on Rates & Collision Theory — practise free

Instant marking, adaptive difficulty, and 16 spaced repetition flashcards. Free until your GCSEs.

Try PrepWise Free

The Chemistry of Speed

Deep Dive: Collision Theory