- #1
roam
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Homework Statement
If the air is at100% relative humidity and a water surface is at the same temperature as that of the air above it, do any of the water molecules leave their liquid state to become vapour?
Homework Equations
[itex]r=\frac{e}{e_s}[/itex]
Clausius-Clapeyron equation:
[itex]\frac{de_s}{dT}= \frac{1}{T} \frac{L_v}{V_v-V_w}[/itex]
The Attempt at a Solution
How can I use the Clausius-Clapeyron relation (or any other method) to determine whether the net evaporation is positive or negative?
If I rewrite the equation in terms of saturation vapor pressure, I don't know the values for volumes. So how will I be able to solve it?
There are other versions of this problem where the water surface may be warmer/colder or the relative humidity may be different. So, how can I approach such problems?
I could not see any worked examples anywhere online. So any help is greatly appreciated.