1. States of Matter (Cambridge IGCSE Chemistry 0620 for 2023, 2024 & 2025)
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Matter consists of solids, liquids, and gases with distinct properties and behaviors, transitioning between states through processes like melting and boiling at specific temperatures. Heating and cooling curves demonstrate these state changes, while diffusion is influenced by kinetic theory and molecular mass differences, causing lighter gases to diffuse quicker.
Insights
- Matter is composed of particles in three states: solids, liquids, and gases, each with distinct properties like fixed volume or shape.
- State changes in matter, such as melting or boiling, occur at specific temperatures and involve kinetic energy shifts in particles, as demonstrated by heating and cooling curves showing transitions between states at constant temperatures.
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Recent questions
What are the three states of matter?
Solid, liquid, gas
What are the changes of state in matter?
Melting, boiling, condensing, freezing
How do heating and cooling curves illustrate state changes?
Show transitions with constant temperature
What is diffusion in matter?
Process of particles spreading
What influences the speed of diffusion in gases?
Kinetic particle theory and molecular mass
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