Question

reason why copper is used to make hot water tanks and not Steel

Answer 1

Why copper is used to make hot water tanks & not Steel?

Copper is better conductor of heat than Steel which is an alloy of iron.

Copper is costlier than Steel, it is used to make hot water tanks in reference to Steel.

Answer 2

Copper is used to make hot water tanks but not Steel  because

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1)copper has very high thermal conductivity compared to that of steel

2)copper is a very good conductor of heat

3)copper gets heated up very fast and it requires very less energy to get heated and hence lots of energy can be saved