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
Cooling and dehumidification
Heating and dehumidification at almost constant wet bulb temperature
None of these

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Mass Transfer
One mole feed of a binary mixture of a given composition is flash vaporised at a fixed P and T. If Raoult's law is obeyed, then changing the feed composition would effect

The product composition as well as the fraction vaporised
The product composition but not the fraction vaporised
Neither the product composition nor the fraction vaporised
The fraction vaporised but not the product composition

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