Water expands when it is cooled from ___∘C to ___∘C, this is known as the anomalous expansion of water.
Anomalous expansion of water is when the water is cooled from 4°C to 0°C. This happens because of the hexagonal crystallization of hydrogen molecules.
Water is cooled from 4∘C to 0∘C. It :
(a) contracts (b) expands
(c) first contracts, then expands
(d) first expands, then contracts.
Water from lakes, rivers and dams is transported to the cities through long pipes. These are the water pipelines.
People have noticed that these pipelines often burst in winter when temperatures drop below 4o C. Why do you think this happens?
WHAT IS ANOMALOUS EXPANSION OF WATER?