- #1
Red_CCF
- 532
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Hi
I had a question regarding an example about mass transfer. I already have the solutions to this but there is one thing I am confused about.
The problem just asks the rate of evaporation from the water-air surface to the atmosphere at a given temperature, pressure, and relative humidity. My question revolve around the fact that in the solutions, they say that the air and the water-air interface is saturated with water vapor and that the vapor pressure at the surface is the saturation pressure of water. I don't understand why this is valid?
Thanks
I had a question regarding an example about mass transfer. I already have the solutions to this but there is one thing I am confused about.
The problem just asks the rate of evaporation from the water-air surface to the atmosphere at a given temperature, pressure, and relative humidity. My question revolve around the fact that in the solutions, they say that the air and the water-air interface is saturated with water vapor and that the vapor pressure at the surface is the saturation pressure of water. I don't understand why this is valid?
Thanks