Fundamentals 50
The chapter discusses the concept of matter, emphasizing that everything in the universe is made of matter, which occupies space and has mass. It explores the physical properties of matter, including its particle nature, states (solid, liquid, gas), and the principles of diffusion, evaporation, and phase changes. The influence of temperature and pressure on the states of matter is examined, along with real-world implications and applications.
Sections
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What we have learnt
- Matter is made up of small particles.
- The matter around us exists in three states—solid, liquid and gas.
- The forces of attraction between particles vary across states: maximum in solids, intermediate in liquids, and minimum in gases.
Key Concepts
- -- Matter
- Anything that has mass and occupies space.
- -- States of Matter
- The distinct forms that matter takes on, typically categorized as solid, liquid, and gas.
- -- Diffusion
- The process by which particles spread from an area of high concentration to an area of low concentration.
- -- Evaporation
- The process by which liquid changes into vapor at any temperature below its boiling point.
- -- Latent Heat
- The heat energy required to change a substance from one state of matter to another at constant temperature.
Additional Learning Materials
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