School Physics Notes: Particle models of state changes and latent heat

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GCSE level Physics exam revision notes

Thermal energy Part 4. Particle model theory applied to motion, kinetic energy and thermal energy transfers in state changes

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Sub-index for this section on applying particle theory to state changes, latent heat, internal energy

(Overlap between pages and with GCSE level pages on the states of matter and their properties)

4.1 Kinetic particle theory to explain gas. liquid AND solid thermal energy stores

4.2 What is the internal energy of a substance?

4.3-4.4 Energy transfer in state changes, conservation of mass, no chemical change AND introduction to latent heat and physical changes of state

4.5-4.6 A heating curve - state changes on increasing the internal energy of a system AND the cooling curve - state changes on decreasing the internal energy of a system

4.7 Everyday examples of latent heat internal energy transfers, defining specific latent heat, examples of worked-out calculations involving specific latent heat

4.8 The particle model of a gas - motion and gas pressure calculations

4.9-4.10 Considering internal and external pressures of a container of gas - the effects of changing quantity, volume or temperature AND increasing the energy store of gas

4.11 Factors that affect the rate of evaporation and condensation

4.12 What is the lowest temperature possible? Kelvin absolute temperature scale

See also the GCSE level chemistry notes on the states of matter


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