Advertisements
Advertisements
प्रश्न
Advertisements
उत्तर
APPEARS IN
संबंधित प्रश्न
Give reason of Ice floats on water.
Give reason for Sea water does not freeze at 0°C.
Draw a graph to show the variation in density of water with temperature in the range from 0°C to 10°C.
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.
Explain the following
Fishes survive in ponds even when the atmospheric temperature is well below 0°C.
Explain, why are soft drink bottles not completely filled?
Why does a thick glass tumbler crack when very hot water is poured in it?
What will be the approximate temperature of water in the lake shown in the following diagram?
(i) At X, and
(ii) At Y?
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?
