why do solids expand when heated

by Guest11365504  |  10 years, 4 month(s) ago

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what makesthem do it

 Tags: expand, heated, Solids



  1. Guest11630770
    they do because the particles are heated which gives them more energy and they spread out more

  2. jade andrews
    Objects expand when heated because the heat 'gives' molecules more energy, so they move around more. This vibration, as molecules are pushed further apart, is manifested as a larger volume. An exception is water, which contracts as it cools until you reach about 3.98 ° C then starts to expand as it cools more. This is caused by the shape of water molecules. Then again, there is Zirconium Tungstate which contracts as it is heated up to 800o C (an effect caused by lattice formation that twists and turns individual molecules).

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