Particle Theory & its Limitations (OCR GCSE Chemistry A (Gateway Science Suite)): Flashcards
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What particle theory explains
What particle theory explains
Properties & behaviours of solids, liquids, gases
Basic idea of particle theory
Basic idea of particle theory
All matter is tiny particles constantly moving
Particle arrangement in solids
Particle arrangement in solids
Closely packed in regular pattern
Particle motion in solids
Particle motion in solids
Vibrate in fixed positions
Shape & volume of solids
Shape & volume of solids
Fixed shape and fixed volume
Particle arrangement in liquids
Particle arrangement in liquids
Close together but more randomly arranged
Why liquids can flow
Why liquids can flow
Particles can move around each other
Volume of liquids
Volume of liquids
Fixed volume
Particle arrangement in gases
Particle arrangement in gases
Far apart, move freely in all directions
Shape & volume of gases
Shape & volume of gases
No fixed shape or volume
Limitation 1: particle shape
Limitation 1: particle shape
Assumes all particles are solid spheres
Limitation 2: forces
Limitation 2: forces
Doesn't show forces between particles
Limitation 3: particle types
Limitation 3: particle types
Doesn't differentiate atoms, ions, molecules
Limitation 4: particle size
Limitation 4: particle size
Assumes all particles same size