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प्रश्न
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उत्तर
It can be seen from the graph that the volume of the water decrease from 0°C to 4°C and the volume Is minimum at 4°C. After 4°C, the volume increases with the increase In temperature.
Variation of the volume of water with temperature
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संबंधित प्रश्न
Give reason of Water pipes burst in severe winter.
Consider the situation of the previous problem. Assume that the temperature of the water at the bottom of the lake remains constant at 4°C as the ice forms on the surface (the heat required to maintain the temperature of the bottom layer may come from the bed of the lake). The depth of the lake is 1.0 m. Show that the thickness of the ice formed attains a steady state maximum value. Find this value. The thermal conductivity of water = 0.50 W m−1°C−1. Take other relevant data from the previous problem.
Explain the following
A glass bottle completely filled with water and tightly closed at room temperature is likely to burst when kept in the freezer of a refrigerator.
What do you understand by the anomalous expansion of water?
What are hot spots? How can you extract energy from a hot spot, if it does not come in contact with underground water?
Observe the given graph and answer the following questions:
- Name the process represented in the figure.
- At what temperature does this process take place?
_______ apparatus is used to study the anomalous behaviour of water.
Write a short note.
Anomalous behaviour of water
