Mass Transfer
Which of the following quantities need not be fixed before starting the design of a co-current absorber?

Heat gain or loss
None of the listed here
Flow rate of entering liquid
Flow rate of gas

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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?

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

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Mass Transfer
In saturated gas, the

None of the listed here
Vapour is in equilibrium with the liquid at the room temperature
Vapour is in equilibrium with the liquid at the gas temperature
Partial pressure of vapour equals the vapour pressure of the liquid at room temperature

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