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Module Lessons
SI Units and Measurement
Properties of Solid Materials (Metals)
Properties of Solid Materials (Plastics & Ceramics)
Mechanical Properties
Corrosion of Metals
Other Forms of Corrosion
Degradation of Plastics
Properties of Liquids (Water)
Properties of Liquids (Others)
Properties of Gases
Temperature and Heat
States of Matter
Sensible and Latent Heat
Conduction and Convection
Radiation and Expansion
Energy, Heat, and Power Calculations
Velocity, Acceleration, and Flow Rate
Force and Pressure
Siphonic Action
Mechanical Principles
Forces in Action
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.
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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