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प्रश्न
Why do the farmers fill their fields with water on a cold winter night?
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उत्तर
In the absence of water, if on a cold winter night the atmospheric temperature falls below 0oC,
the water in the fine capillaries of plant will freeze, so the veins will burst due to the increase in
the volume of water on freezing. As a result, plants will die and the crop will be destroyed. In
order to save the crop on such cold nights, farmers fill their fields with water because water has
high specific heat capacity, so it does not allow the temperature in the surrounding area of plants
to fall up to 0oC.
संबंधित प्रश्न
How will global warming disturb the ecological balance?
The specific heat capacity of a body depends on _____________ .
The substances like water which have ........... Heat capacity warm up more slowly than substances like iron which have .......... heat capacity.
What is heat? What is the S. I. unit of heat?
Write two advantages of high specific heat capacity of water.
Explain, why temperature in hot summer, falls sharply after a sharp shower?
Describe a method to determine the specific heat capacity of a solid (say, a piece of copper).
If 'Cp' and 'Cv' are molar specific heats of an ideal gas at constant pressure and volume respectively. If 'λ' is the ratio of two specific heats and 'R' is universal gas constant then 'Cp' is equal to ______.
For a gas `"R"/"C"_"v" = 0.4,` where 'R' is the universal gas constant and 'Cv' is molar specific heat at constant volume. The gas is made up of molecules which are ______.
