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प्रश्न
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संबंधित प्रश्न
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?
A calorimeter contains 50 g of water at 50°C. The temperature falls to 45°C in 10 minutes. When the calorimeter contains 100 g of water at 50°C, it takes 18 minutes for the temperature to become 45°C. Find the water equivalent of the calorimeter.
Explain the following
Fishes survive in ponds even when the atmospheric temperature is well below 0°C.
Explain the following
A hollow glass sphere which floats with its entire volume submerged in water at 4°C, sinks when water is heated above 4°C.
A deep pond of water has its top layer frozen. What will be the likely temperature of water layer just in contact with ice?
What is the criterion of choosing the two metals for a bimetal strip?
Observe the given graph and answer the following questions:
- Name the process represented in the figure.
- At what temperature does this process take place?
