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Questions and Answers
Which state of matter has particles that vibrate in fixed positions?
Which state of matter has particles that vibrate in fixed positions?
What is the term used to describe the random motion of particles suspended in a fluid?
What is the term used to describe the random motion of particles suspended in a fluid?
In which state of matter are the particles arranged randomly and close together?
In which state of matter are the particles arranged randomly and close together?
What is the net movement of particles from an area of high concentration to an area of low concentration known as?
What is the net movement of particles from an area of high concentration to an area of low concentration known as?
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Which theory represents the three states of matter by modeling particles as small solid spheres?
Which theory represents the three states of matter by modeling particles as small solid spheres?
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What process involves a solid turning directly into a gas without becoming a liquid first?
What process involves a solid turning directly into a gas without becoming a liquid first?
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Study Notes
States of Matter
- Particles that vibrate in fixed positions are characteristic of the solid state of matter.
- The term used to describe the random motion of particles suspended in a fluid is Brownian motion.
Arrangement of Particles
- In the solid state, particles are arranged randomly and close together.
Particle Movement
- The net movement of particles from an area of high concentration to an area of low concentration is known as diffusion.
Models of Particles
- The Kinetic Molecular Theory represents the three states of matter by modeling particles as small solid spheres.
Phase Changes
- The process in which a solid turns directly into a gas without becoming a liquid first is known as sublimation.
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Description
Test your knowledge on key concepts and definitions related to the particulate nature of matter in CAIE Chemistry IGCSE Topic 1. Definitions extracted or modified from the CAIE Specification for GCSE Chemistry are included for reference.
