Mass Transfer
Which of the following is an undesirable characteristic for the solvent used in gas absorption?

High gas solubility
None of these
Low viscosity
Low vapor pressure

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

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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
Dehumidification with dry bulb temperature remaining constant
Cooling and dehumidification
None of these

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