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प्रश्न
Give reasons for the following:
Humid air is lighter than dry air.
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उत्तर
Humid air is lighter than dry air because of the difference in the molecular weight of the gases involved.
Dry air is made up mostly of nitrogen (N₂) and oxygen (O₂), which have relatively higher molecular weights,28 and 32, respectively. However, humid air contains water vapor (H₂O), which has a lower molecular weight of 18.
When water vapor replaces some of the nitrogen and oxygen molecules in the air, the average molecular weight of the air decreases, making humid air less dense (lighter) than dry air at the same temperature and pressure. So, despite the moisture, humid air rises more easily than dry air because it is less dense.
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संबंधित प्रश्न
Define the following term:
Pressure Gradient
Define the following term:
Winds
Define the following term:
Coriolis force
Define the following term:
Altitude
Define the following term:
Monsoons
How does the Coriolis Force vary latitudinally?
Give reasons for the following:
The winds are directed to the right of their flow in the Northern Hemisphere.
Give reasons for the following:
Mediterranean lands receive most of the rainfall in the winter season.
Distinguish between the following:
Summer and Winter Monsoons.
