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Science and Technology - General Knowledge Questions
As water is cooled from 4 deg C to 0 deg C, its density
A)
remains same
B)
zero
C)
decreases
D)
increases

Correct Answer :   decreases

When water is cooled from 4°C to 0°C, its density decreases.
 
When water cools from 4°C to 0°C, ice crystals begin to form because the water is approaching its freezing point. When water freezes, the water molecules form a lattice that increases the volume. As a result, the density decreases. This is why ice will float on top of water; ice has a lower density than the water.

Published On : June 13, 2021
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