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Wednesday, 04 March 2026
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If the partial pressure of water vapour at 27°C is 18 mm Hg and the saturated ...

If the partial pressure of water vapour at 27°C is 18 mm Hg and the saturated vapour pressure of the atmosphere at the same temperature is 24 mm Hg, the relative humidity at this temperature is?
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  • A 25%
  • B 33%
  • C 75%
  • D 82%
Correct Answer: Option C
Explanation:
Relative
Humidity = (S.V.P. of water at dew point)/S.V.P of water at air temperature =(18)/24 x 100% = 75%

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