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why does iron expand when heated?

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When heated, iron expands, but why?

asked Mar 25, 2014 in Solar by Meme
   

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Iron will expand when heated because when it is heated the flow of heat will result the molecules of iron to get separated by a specified distance from eachother so that the volume each molecules occupy will increase and so iron will get expanded.

answered Mar 25, 2014 by answerman Inquisitive Expert (58,420 points)

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