Question
Download Solution PDFWhich of the following statements regarding the effect of humidity on evaporation is correct?
This question was previously asked in
Bihar STET TGT (Science) Official Paper-I (Held On: 08 Sept, 2023 Shift 1)
Answer (Detailed Solution Below)
Option 1 : The rate of evaporation decreases with increase in humidity
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Bihar STET Paper 1 Mathematics Full Test 1
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Detailed Solution
Download Solution PDFConcept:
- Evaporation is the phenomenon of change in a liquid into vapors at any temperature below its boiling point.
- Rate of evaporation depends upon-
- Surface area
- Temperature
- Humidity
- Wind speed
Explanation:
Humidity:
- Humidity is the amount of water vapor present in the air.
- If the amount of water in the air is already high, the rate of evaporation decreases.
- This means the humidity is inversely proportional to the rate of evaporation.
Additional Information
- Evaporation:
- The phenomenon of change of a liquid into vapours at any given temperature below its boiling point is called Evaporation.
Rate of Evaporation | Condition | Reason |
Increases | Increase in Surface Area | Particles have more space and thus can evaporate easily |
Increases | Increase in temperature | Kinetic energy among the particles increases |
Decreases | Increase in humidity | Water content in air increases and so evaporation decreases |
Increases | Increase in wind speed | Water vapours are blown away by winds allowing more evaporation |
Conclusion:-
So the statement 1 is correct i.e The rate of evaporation decreases with increase in humidity
Last updated on Jan 29, 2025
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