Mass Transfer
Capacity of a rotary dryer depends on its

Both Inclination with ground surface & R.p.m
R.p.m
None of the listed here
Inclination with ground surface

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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

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

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