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प्रश्न
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उत्तर
Fill a round bottom flask with a coloured liquid up to the brim. Fit it with a one holed cork and pass a narrow glass tube through it. Mark the level of the liquid in the glass tube. Place the flask in a water bath and heat the bath.
You will see that the level of liquid water rises in the glass tube. This is due to the expansion of the liquid on heating.
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संबंधित प्रश्न
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.
Water is cooled from 4 °C to 0 °C. It will :
Density of water is maximum at :
What do you understand by the anomalous expansion of water?
How do fishes survive in frozen lakes?
Explain why do vegetables and fruits get damaged during severe frost?
In a region with a cold climate the aquatic animals can survive at 4 °C, because _______.
Write scientific reason.
Fish can survive even in frozen ponds in cold regions.
