Mass Transfer
The relative humidity of air decreases in-spite of an increase in the absolute humidity, when the

Temperature falls
Pressure rises
Temperature rises
Pressure falls

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

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