Give reasons why copper is used to make hot water tanks and not steel (an alloy of iron).

Reasons why copper is used to make hot water tanks and not steel (an alloy of iron):

Corrosion Resistance: Copper is highly resistant to corrosion, especially in hot water environments. It forms a protective oxide layer that prevents further corrosion, making it ideal for hot water tanks.

Heat Conductivity: Copper has excellent thermal conductivity, which means it can efficiently transfer heat. This property allows hot water to be quickly and evenly distributed throughout the tank, ensuring efficient heating.

Ductility and Malleability: Copper is a highly ductile and malleable metal, making it easy to shape and form into the desired tank design. This flexibility allows for the creation of custom shapes and sizes to fit specific hot water tank requirements.

Lightweight: Copper is relatively lightweight compared to steel, making it easier to handle and install. This is particularly advantageous when dealing with large hot water tanks that need to be transported and maneuvered during installation.

Longevity: Copper has a long lifespan and can withstand high temperatures without losing its structural integrity. This durability ensures that copper hot water tanks can provide reliable service for many years.

Overall, the combination of corrosion resistance, heat conductivity, ductility, malleability, lightweight, and longevity makes copper the preferred choice for hot water tanks over steel (an alloy of iron).

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