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प्रश्न
Explain, why are the exposed water pipes lagged with straw during severe winter?
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उत्तर
Water freezes at sub-zero temperature and in doing so expands (anomalous behaviour of water). So exposed water pipes during severe winter are lagged with a straw so as to provide sufficient space for the expansion of freezing water.
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संबंधित प्रश्न
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?
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The instrument used to study anomalous behaviour of water.
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- Which process does the graph represent?
- What is the range of temperature responsible for the behaviour?
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- Which property do you understand in this picture?
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| Column ‘A’ | Column ‘B’ |
| The density of water is maximum at | (a) 0°C |
| (b) 4°C | |
| (c) 100°C |
