Advertisements
Advertisements
प्रश्न
Explain why:
Lakes and rivers do not suddenly freeze in the winters.
उत्तर
Lakes and rivers do not freeze suddenly in winters because of the high specific latent heat of solidification, i.e. the amount of heat released when 1 g of water solidifies to form 1 g of ice at 0°C. It is about 336 J/g or 80 cal/g.
APPEARS IN
संबंधित प्रश्न
Why is sea water salty ?
Discuss the importance of water as a solvent for plants.
What are the observations and conclusions when tap water is boiled and evaporated in watch glass?
Explain why boiled or distilled water tastes flat.
Explain why:
Ice at zero degrees centigrade has greater cooling effect than water at 0oC.
What is soap? For what is it used?
What is the advantage of a detergent over soap?
Give a reason for the following.
Water is a universal solvent.
Aquatic plants make use of dissolved ______ for photosynthesis.
Explain the importance of dissolved salts in water.
