A: - Water expands both when heated or cooled from 40CR: - Density of water is minimum at 40C

At 40C the volume of water minimum. When it is cooled below 40C or heated above 40C, then it expands or its volume increases. As volume at 40C is minimum, thus its density =massvolume will be maximum

A: - Water expands both when heated or cooled from 40CR: - Density of water is minimum at 40C

At 40C the volume of water minimum. When it is cooled below 40C or heated above 40C, then it expands or its volume increases. As volume at 40C is minimum, thus its density =massvolume will be maximum

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A: - Water expands both when heated or cooled from 4⁰C
R: - Density of water is minimum at 4⁰C

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Detailed Solution

At 4⁰C the volume of water minimum. When it is cooled below 4⁰C or heated above 4⁰C, then it expands or its volume increases. As volume at 4⁰C is minimum, thus its density $(= \frac{m a s s}{v o l u m e})$ will be maximum