Explain with a graph, how does density of water varies with temperature. [2Marks]
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Solution
Water shows an anomalous behaviour; it's density decreases when it is cooled from 4 ∘C to 0 ∘C and when it is heated beyond 4 ∘C. Therefore, water has maximum density at 4 ∘C. [1Mark]
The graph for water's density with respect to temperature is as follows: [1Mark]