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प्रश्न
The farmers fill their fields with water in winter. Give reason.
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उत्तर
The farmers fill their fields with water in winter to protect the crops from frost because water due to its high specific heat capacity does not allow the temperature in the surrounding area of plants to fall below 0°C.
संबंधित प्रश्न
State the impact of global warming on life on the earth.
What is meant by specific heat capacity?
Study the following procedure and answer the questions below:
1. Take 3 spheres of iron, copper and lead of equal mass.
2. Put all the 3 spheres in boiling water in a beaker for some time.
3. Take 3 spheres out of the water. Put them immediately on a thick slab of wax.
4. Note, the depth that each sphere goes into the wax.
i) Which property of substance can be studied with this procedure?
ii) Describe that property in minimum words.
iii) Explain the rule of heat exchange with this property.
The product of mass and specific heat is known as ..........
63.2 g of copper at 50°C can just melt 3.8g of ice. If the specific latent heat of ice is 336 J/g, find the specific heat capacity of copper.
Answer the following question.
Why do we generally consider two specific heats of a gas?
Write a short note.
Specific heat capacity
Why is water used as a coolant in radiators of a car?
Water has the lowest specific heat capacity.
Two cylinders of equal height and radius are made of copper and aluminum. Which of them conducts heat faster?
