Question

Explain why copper is used for hot water tank not steel

Answer 1

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As Copper wire metal condusct heat and thus it is used for hot water tank.

Answer 2

This is because copper is one of the best conductors of hear and steel is an alloy, even though steal is a good conductor heat pure metals(like copper) are better conductors of heat that alloys and hence copper is used to make hot water tanks not steel