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Lesson 10 of 21

Properties of Gases

Read through the material below, then test your understanding.

Module Lessons

Scientific Principles

Lesson Overview

This lesson covers the fundamental physical properties of gases encountered in plumbing and heating, including relative density, gas behaviour, and the core gas laws governing pressure, volume, and temperature.

Learning Objectives

Identify the key properties, compositions, and relative densities of fuel gases, air, steam, and carbon dioxide.

Explain how gas density dictates leak behaviour and safety precautions on site.

Apply Boyle's law and Charles's law to predict changes in gas pressure, volume, and temperature.

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