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Chem - Particles

Chemistry - Particles

QuestionAnswer
How are particles arranged in solids? close together in a regular pattern
How are particles arranged in liquids? close together in a random pattern
How are particles arranged in gases? far apart in a random pattern
How do particles move in solids? vibrate about a fixed position
How do particles move in liquids? move around each other
How do particles move in gases? move quickly in any direction
What is 'density' how closely packed the particles are
How do you calculate density? mass / volume
What is 'internal energy'? the sum of the kinetic and potential energies of all the particles
Why must a substance absorb heat energy so that it can melt or boil
What is 'specific heat capacity'? the energy required to change the temperature of to change the temperature of 1kg of the material by 1 degree.
What causes 'gas pressure'? particles hitting a surface
What is 'specific latent heat'? the energy required to change 1kg of a substance at a constant temperature
What is 'specific latent heat of fusion'? the energy required to change 1kg of a substance from a solid to a liquid
What is 'specific latent heat of vaporisation'? the energy required to change 1kg of a substance from a liquid to a gas.
Created by: samfitter
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