Question : Air is said to be saturated when -
Option 1: It contains the maximum content of water vapour.
Option 2: Its pressure is minimum.
Option 3: Its thickness is maximum.
Option 4: It blows over the barren land.
Correct Answer: It contains the maximum content of water vapour.
Solution : The correct option is It contains the maximum content of water vapour.
Nitrogen makes up 78% of the gas in the air, oxygen 21%, followed by argon and carbon dioxide in trace amounts. Water vapour is present in the air in varying amounts, along with dust particles. At a specific pressure and temperature, the air is considered to be saturated when it contains the maximum amount of water vapour. It is found that the relative humidity is 100% in such a condition.
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