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प्रश्न
At what temperature is the density of water is maximum? State its value.
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उत्तर
Density of water is maximum at 4°C. Its value is 1000 kgm-3.
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संबंधित प्रश्न
Give reason for Sea water does not freeze at 0°C.
Observe the following graph. Considering the change in volume of water as its temperature is raised from 0°C, discuss the difference in the behaviour of water and other substances. What is this behaviour of water called?
Describe an experiment to show that water has maximum density at 4°C. What important consequences follow this peculiar property of water? Discuss the importance of this phenomenon in nature.
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 just in contact with ice?
Give reasons for the following:
Even when the water in the lakes is frozen, fish can survive.
Write scientific reason.
Placing a plastic bottle filled with water in the freezing compartment in the freezer can cause the bottle to explode.
Observe the following diagram and write the answers to the questions given below.
- Which process does the graph represent?
- What is the range of temperature responsible for the behaviour?
