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Give Reason of Water Pipes Burst in Severe Winter. - Physics

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प्रश्न

Give reason of Water pipes burst in severe winter.

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उत्तर १

Water pipes bursts in severe winter because the water inside I the pipes freezes and increases its volume.

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उत्तर २

In severe winter, water pipe lines often burst because water freeze at sub-zero temperature and in doing so expands. Since there is no space within the pipes for expanding ice, it exerts very large pressure and bursts open the steel pipes.

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Anomalous Expansion of Water
  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 8: Water - Exercise I [पृष्ठ १०७]

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सेलिना Concise Chemistry [English] Class 8 ICSE
पाठ 8 Water
Exercise I | Q 6.2 | पृष्ठ १०७

संबंधित प्रश्‍न

Water is used as a cooling agent.


How does the anomalous expansion of water help aquatic organisms in cold climates?


Explain the following:

How can you relate the formation of water droplets on the outer surface of a bottle taken out of refrigerator with formation of dew?


1 kg of ice at 0°C is mixed with 1 kg of steam at 100°C. What will be the composition of the system when thermal equilibrium is reached? Latent heat of fusion of ice = 3.36 × 103 J kg−1 and latent heat of vaporization of water = 2.26 × 106 J kg−1.


On a winter day the temperature of the tap water is 20°C whereas the room temperature is 5°C. Water is stored in a tank of capacity 0.5 m3 for household use. If it were possible to use the heat liberated by the water to lift a 10 kg mass vertically, how high can it be lifted as the water comes to the room temperature? Take g = 10 m s−2.


Draw a graph to show the variation in density of water with temperature in the range from 0°C to 10°C. 


Explain, why are soft drink bottles not completely filled?


Explain, why does a glass bottle completely filled with water and tightly capped burst when placed in a freezer?


The following figure shows a metal cylinder, containing boiling water. One half side A is polished and another half, B is painted black. Two thin metal sheets X and Y are painted black and have one rubber stopper fixed with wax on each sheet. These sheets are equidistant from the boiling water (container A, B) as shown in the diagram. What would you expect to happen after a few minutes? Give a reason for your answer.


The temperature of two bodies A and B differ by 1°C. By how much will it differ on a Fahrenheit scale?

Give reasons for the following:

Even when the water in the lakes is frozen, fish can survive.


What will be the approximate temperature of water in the lake shown in the following diagram?

(i) At X, and
(ii) At Y?


How will you demonstrate thermal expansion in liquids? Describe an experiment.

Describe an experiment to demonstrate thermal expansion in gases.

Why does a hot glass chimney often crack when a drop of waterfalls on it?

At what temperature the density of water is maximum?

What is meant by the range of a thermometer?

Name the liquid used in a clinical thermometer.

Match the columns:

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

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