lf the temperature of a small quantity of water in a closed container is gradually...

WAEC 1990

lf the temperature of a small quantity of water in a closed container is gradually increased from 0o to 40oC then the density of the water within this range

A. increases for a while and then decreases
B. decreases for a while and then increases
C. increases gradually
D. decreases gradually
E. remains the same

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Correct Answer: Option A

Explanation

Water has a peculiar property. When temperature rises between 0 to 4°C water is not going to expand but it is going to contract. This special property is called anomalous. Therefore at 4°C volume of the water is minimum and the corresponding density is maximum.

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