An apartment has the dimensions 20 m by 10 m by 7 m. The temperature is 25°C, and the relative humidity is 56 percent. What is the total mass (in kg) of water vapor in the air in the apartment?
The total mass of water vapor in the air in the apartment can be calculated using the following equation:
Mass (kg) = Volume (m3) x Density (kg/m3)
Density of water vapor at 25°C and 56% relative humidity is 0.0075 kg/m3.
Therefore, the total mass of water vapor in the air in the apartment is:
Mass (kg) = 20 m x 10 m x 7 m x 0.0075 kg/m3 = 0.105 kg