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G2.3 ENERGIES AND TEMPERATURE (1)
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The total energy of a sample increases as the temperature increases. At a higher temperature, more of the particles in a sample have a high energy and fewer particles have a low energy. This is a ‘snapshot’ of the particles of a substance in the gas state:



For this substance, the holding ability of the particles is not strong
enough to keep them together at either temperature.

Notes: see Teachers’ Guide
 
teachers’ guide g2



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g1: evaporation
g2: energy
g3: explaining
g4: boiling
g5: comparing rates

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