💥 Explaining Equilibrium Through Collision Theory

📚 Syllabus Dot Point

Explain the overall observations about equilibrium in terms of the collision theory (ACSCH094)

Module 5: Equilibrium and Acid Reactions

In previous lessons, you learned collision theory (particles must collide with sufficient energy and correct orientation) and Le Chatelier’s principle (systems shift to counteract changes). This lesson brings them together: you must be able to explain every equilibrium observation using the language of collision theory.

This is a critical HSC skill. Le Chatelier’s principle tells you what happens. Collision theory explains why it happens at the particle level. The best exam answers use both together.

⚠️ HSC Command Word: Explain

Explain means to relate cause and effect; make the relationships between things evident; provide why and/or how. You must connect the microscopic (particle collisions) to the macroscopic (what we observe). Simply stating the direction of shift without explaining the collision theory reasoning will not earn full marks.