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प्रश्न
Give a scientific reason.
A wet cloth is wrapped around a water storage container in summer.
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उत्तर
A wet cloth is wrapped around water containers in summers to keep the container and the water inside it cool. The water present in the cloth evapourates and along with that water, the heat also evapourates thus keeping the container and water cool.
संबंधित प्रश्न
How will you separate a mixture containing kerosene and petrol (difference in their boiling points is more than 25°C), which are miscible with each other?
How would you confirm that a colourless liquid given to you is pure water?
Give a brief description of the principle of the following technique taking an example.
Distillation
Give one word answer
The process by which two miscible liquids are separated
Write an answer to the following question in your own words.
Where are the methods of separation by distillation and by separating funnel used? Why?
Why is a condenser used in distillation process?
What will happen if the upper outlet of the condenser is connected to the tap instead of the lower outlet?
What is the difference between simple distillation and fractional distillation?
Define Distillation
Two liquids (A) and (B) can be separated by the method of fractional distillation. The boiling point of liquid (A) is less than boiling point of liquid (B). Which of the liquids do you expect to come out first in the distillate? Explain.
