Mass Transfer
In case of a desorber (stripper), the

Temperature always increases
Operating line always lies above the equilibrium curve
Operating line always lies below the equilibrium curve
Temperature remains unaffected

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Mass Transfer
For the air water system under ambient conditions, the adiabatic saturation temperature and the wet bulb temperature are nearly equal, because

They are always equal under all circumstances
Water has a high latent heat of evaporation
Lewis number is close to unity
Solubility of the components of air in water is very small

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