Why are solids better conductors of heat as compared to liquids and gases?
Answers
Answer:
Solids are not necessarily better conductors than liquids; it depends on your solid and on your liquid. The elements can be divided into three categories metal, metalloid and non-metals. Metals are great conductors of electricity, non metals are poor and metalloids are in between and called semi-conductors.
Pure water is a poor conductor of electricity, however, if you add electrolytes (like in your favorite sports drinks) than it becomes a good conductor. An electrolyte is a salt (the secret ingredient in sports drinks — salt) added to a liquid, which then makes the liquid conduct electricity. Salt in water breaks up into ions which carry the charge through the liquid. To answer your question, the property which makes something a good conductor of electricity is its ability to lose electrons. Metals have a very weak hold on their valence electrons (electrons in the outer most shell). This is what gives metals their various metallic characteristics, such as conductivity, being able to be stretched into a wire (ductility) or hammered flat ( malleability). The loose electrons can easily pass from one to the other carrying the charge (and heat) with it along the way
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