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संबंधित प्रश्न
How does the anomalous expansion of water help aquatic organisms in cold climates?
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.
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.
Water is cooled from 4 °C to 0 °C. It will :
A deep pond of water has its top layer frozen. What will be the likely temperature of water layer at the bottom of the pond?
Study the following diagrams and write down your observations.
When the temperature of water decreases below 4 °C it’s volume _______.
Draw a neat and labelled diagram of Hope’s apparatus.
