Chemistry IB S1.1.2 the kinetic molecular theory

Video content
0:00 Introduction
1:01 Structure of the video
1:42 Learning Objective
2:09 Kinetic molecular theory
5:50 Solids, liquids and gases
8:13 Diffusion
9:30 Kinetic Energy Equation (Diffusion of Gases)
12:12 State symbols
15:07 Deposition and Sublimation
16:33 Evaporation vs Boiling
18:19 Exercises (past papers and Pearson IB)

Unlock the secrets of the Kinetic Molecular Theory and master one of the most important foundations of Chemistry IB!

In this video, we break down Topic S1.1.2 of the IB Chemistry syllabus in a way that’s clear, simple, and exam-focused. You’ll understand:

How particles behave in solids, liquids, and gases

The key assumptions of the Kinetic Molecular Theory

How this knowledge links to real-world applications and exam questions

Whether you’re struggling to connect the dots or aiming for a 6 or 7 in IB Chemistry, this tutorial is for you.

As an experienced IB Chemistry teacher, I’ll guide you through what you really need to know for your exams and Internal Assessments — plus share tips my students use to boost their grades fast.

💡 Got questions? Drop them in the comments! I personally reply to help you understand and apply these concepts.