At what temperature is the density of water is maximum? State its value.

One Line Answer

Density of water is maximum at 4°C. Its value is 1000 kgm^-3.

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Anomalous Expansion of Water

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Chapter 6: Heat and Energy - Exercise 6 (A) [Page 129]

Chapter 6 Heat and Energy
Exercise 6 (A) | Q 11 | Page 129

Water is used as a cooling agent.

On what basis and how will you determine whether air is saturated with vapour or not?

Draw a graph between volume and temperature, when 5 cm³ of ice at -10°C is heated to form water at +10°C.

How do fishes survive in frozen lakes?

A deep pond of water has its top layer frozen. What will be the likely temperature of water layer at the bottom of the pond?

In cold countries, the water pipes are covered with poor conductors. Why?

In cold regions, in winter the pipes for water supply break.

Match the columns:

Column ‘A’	Column ‘B’
The density of water is maximum at	(a) 0°C
	(b) 4°C
	(c) 100°C

A graph between the volume and temperature of water is shown. Explain the anomalous behaviour of water.