Mass Transfer
With increase in temperature, the mutual solubility of two liquids

Decreases
Decreases exponentially
Remains unchanged
Increases

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Mass Transfer
Dew point of an air-water vapor mixture

Decreases with decrease in pressure
All of the listed here
At constant humidity & total pressure is fixed
Corresponding to any point on the humidity chart is obtained by projecting a line through this point parallel to the temperature axis and to the saturation curve

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Mass Transfer
In a counter-current liquid extractor

Both liquids flow at fixed rate
Both liquids can have any desired flow rate
Only one of the liquids may be pumped at any desired rate
Liquid's flow rate depends upon the temperature and 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 fraction vaporised but not the product composition
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

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