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.
RELATED QUESTIONS
How much heat energy is released when 5.0 g of water at 20℃ changes into ice at 0℃? Take specific heat capacity of water = 4.2 J g-1 K-1, Specific latent heat of fusion of ice = 336 J g-1.
State the impact of global warming on life on the earth.
What impact will global warming have on the health of the affected population?
Explain, why water is considered as best liquid for quenching thirst?
Two metals A and B have specific heat capacities in the ratio 2:3. If they are supplied same amount of heat then
If the mass ratio of metal A and metal B is 3:5 then calculate the ratio in which their temperatures rise.
Specific heat capacity C = ______.
Conductors have generally high specific heat capacities and insulators have low specific heat capacities.
The specific heat capacity of ______ is maximum.
