Describe the unusual expansion of water, with aid of diagrams

Describe the unusual expansion of water, with aid of diagrams.

Answers

If water is heated from -15^oC it expands normally like any solid but only up to 0^oC. At this point it starts to melt and it contracts. This contraction will be observed up to 4 ^oC. When heated further water starts to expand up to boiling point. This is the unusual expansion of water. This makes the top of water to freeze (0^oC) in temperate countries allowing the one below to remain liquid (4^oC). This supports marine life during winter.

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raphael answered the question on October 11, 2018 at 04:48

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