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# How Does the Density of a Liquid (Or Gas) Vary with Temperature? - ICSE Class 8 - Physics

ConceptComparison of Densities in the Three States of Matter.

#### Question

How does the density of a liquid (or gas) vary with temperature?

#### Solution

Most of the liquids increase in volume with increase in temperature, but water shows anomalous behaviour. Water has maximum volume at 4°C and maximum density at 4°C.
Actually, when volume increases density decreases and when volume decreases the density increases.
But water when cooled from a high temperature, contracts upto 4°C because volume decreases and expands when cooled further below 4°C and hence density of water increases when it is cooled upto 4°C while decreases when cooled further below 4°C. In other words, the density of water is maximum at 4°C equal to 1 g Cm-3 or lOOO kg m-3.

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Solution How Does the Density of a Liquid (Or Gas) Vary with Temperature? Concept: Comparison of Densities in the Three States of Matter..
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