Mass Transfer
Which of the following psychrometric processes is followed by water vapour laden unsaturated air, when it is passed through solid or liquid adsorbent?

Dehumidification with dry bulb temperature remaining constant
Heating and dehumidification at almost constant wet bulb temperature
None of these
Cooling and dehumidification

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Mass Transfer
Heat load in a cooling tower

Means the amount of heat thrown away (KCal/hr.) by the cooling tower
Neither A nor B
Is equal to the number of kg, of water circulated times the cooling range
Both A & B

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Mass Transfer
Henry's law states that the

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
Vapour pressure is equal to the product of the mole fraction and total pressure
Partial pressure is equal to the product of the mole fraction and total pressure

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