Advertisements
Advertisements
Question
Advertisements
Solution
Farmers fill their fields with water on a cold winter night to protect the crops from frost. In the absence of water, if on a cold night the temperature of the surroundings falls below 0°C, then the veins of the plants will freeze. Due to the anomalous expansion of water, ice will occupy more volume than water. As a result of this expansion, veins shall burst and crops will be destroyed. But water sprinkled on the crops shall not allow the temperature of the veins to fall below 0°C.
APPEARS IN
RELATED QUESTIONS
What do you understand by the following statements:
The heat capacity of the body is 60JK-1.
Name the S.I. unit of heat.
What do you mean by the following statement?
The heat capacity of a body is 50 JK-1?
Give one example where high specific heat capacity of water is used as heat reservoir ?
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 the approximate values of the specific latent heat of fusion of ice.
If substances A and B are liquids then which one would be more useful in car radiators?
Given: Specific heat capacity’A’ 3.8 J/g /K. Specific heat capacity ‘B’ 0.4 J/g /K.
Heat is applied to a rigid diatomic gas at constant pressure. The ratio ΔQ : ΔU : ΔW is ______.
