Exercise 3 | Liquids and Solids

The relative humidity in a green house at 35.0°C is 88.5%.

Calculate the vapor pressure of water vapor in the greenhouse (in Pa).


Data: vapor pressure of water at 35.0°C = 41.2 mmHg  (1 mmHg = 1.33 x 10-1 kPa)

φ = PH2OP0H2O x 100

PH2O = partial pressure of the water vapor in the greenhouse
P0H2O = equilibrium vapor pressure of water at the same temperature

 

P0H2O = 41.2 mmHg = 5.49 kPa
PH2O =  φ P0H2O100 = 4.86 kPa = 4860 Pa