Mass Transfer
Unsaturated air (with dry bulb temperature and dew point being 35°C and 18°C respectively) is passed through a water spray chamber maintained at 15°C. The air will be cooled

At the same relative humidity
And dehumidified with increase in wet bulb temperature
And humidified
And dehumidified with decrease in wet bulb temperature

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Mass Transfer
The rate of solid-liquid extraction is limited by the

All of these
Phase change of the solute as it dissolves in the solvent
Diffusion of the solute through the solvent in the pores to the outside of the particle
Diffusion of the solute from the solution in contact with the particle to the main bulk of the solution

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