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12 Dec 2019

On a given day, the weatherman reports that the atmospheric pressure is 50F, and the relative humidity is 45%. If the (pure) vapor pressure of water at 50F is 9.2 torr, then the partial pressure of water in the atmosphere is?

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Jarrod Robel
Jarrod RobelLv2
13 Dec 2019
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Related questions

The relative humidity of air equals the ratio of the partial pressure of water in the air to the equilibrium vapor pressure of water at the same temperature times 100%. If the relative humidity of the air is 58% and its temperature is 68 oF , how many moles of water are present in a room measuring 12 ft x 10 ft x 8 ft? The vapor pressure of water at 68 oF is 17.54 torr. The answer is 20, but for some reason I keep getting 15.127moles

The percent relative humidity of a sample of air is found as follows: (partial pressure of water vapor/vapor pressure of water) ×100 A sample of air at 23°C was cooled to 15°C where moisture began to condense as dew. What was the relative humidity of the air at 23°C? Vapor pressure of water: 15 °C: 12.8 mm Hg 23°C: 21.1 mm Hg

The relative humidity in a room is 65%. Assuming ideal gas behavior, what mass of water vapor is in the air at 25˚C if the room measures 4.2 m x 4.5 m x 3.6 m? The vapor pressure of liquid water is 23.8 torr at 25˚C.

relative humidity = actual pvap (H2O) equilibrium pvap (H2O) x100

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