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

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

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Mass Transfer
Henry's law states that the

Partial pressure is equal to the product of the mole fraction and total pressure
Vapour pressure is equal to the product of the mole fraction and total pressure
Partial pressure of a component over a solution is proportional to the mole fraction in the vapour
Partial pressure of a component over a solution is proportional to its mole fraction in the liquid

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