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प्रश्न
Draw a graph to show the variation in density of water with temperature in the range from 0°C to 10°C.
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उत्तर
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संबंधित प्रश्न
Give reason of Water pipes burst in severe winter.
Give reason of Ice floats on water.
Give reason for Sea water does not freeze at 0°C.
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?
Calculate the time required to heat 20 kg of water from 10°C to 35°C using an immersion heater rated 1000 W. Assume that 80% of the power input is used to heat the water. Specific heat capacity of water = 42000 J kg−1 K−1.
At what temperature is the density of water is maximum? State its value.
Draw a graph between volume and temperature, when 5 cm3 of ice at -10°C is heated to form water at +10°C.
When the temperature of water decreases below 4 °C it’s volume _______.
Write scientific reason.
Fish can survive even in frozen ponds in cold regions.
Match the columns:
| Column ‘A’ | Column ‘B’ |
| The density of water is maximum at | (a) 0°C |
| (b) 4°C | |
| (c) 100°C |
