If a sample of air contains 1 g/kg of water vapor and has a relative humidity of 25 percent at -5 degrees Celsius how much water vapor does it need to contain to be saturated?

A) 2 g/kg

B) 1 g/kg

C) 4 g/kg

D) 3 g/kg

Relative humidity (RH) is defined as the ratio of amount of water vapor present in a given sample of air to the maximum amount of water that can be absorbed by the same sample of air to attain saturation at a particular temperature .

Thus,

[tex]RH = \frac{X}{Y} \\[/tex]

Where X represents the current amount of water vapor present in a given sample of air

and Y represents the maximum amount of water that can be absorbed by the same sample of air to attain saturation at a particular temperature

Substituting the given values in above equation we get -

[tex]0.25 = \frac{1 g/Kg}{Y} \\Y = \frac{1 g/Kg}{0.25} \\Y = 4 g/Kg[/tex]

Hence, option C is the correct answer

If a sample of air contains 1 g/kg of water vapor and has a relative humidity of 25 percent at -5 degrees Celsius how much water vapor does it need to contain to be saturated? A) 2 g/kg B) 1 g/kg C) 4 g/kg D) 3 g/kg

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If a sample of air contains 1 g/kg of water vapor and has a relative humidity of 25 percent at -5 degrees Celsius how much water vapor does it need to contain to be saturated?

A) 2 g/kg

B) 1 g/kg

C) 4 g/kg

D) 3 g/kg