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प्रश्न
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उत्तर
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संबंधित प्रश्न
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
Fishes survive in ponds even when the atmospheric temperature is well below 0°C.
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.
Study the following diagrams and write down your observations.
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.
While studying anomalous behaviour of water in Hope’s apparatus, the upper temperature of the thermometer : 0 °C : : lower temperature of the thermometer : _______
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?
