Mass Transfer
Which of the following decreases during evaporative cooling process with recirculated water supply?

Relative humidity
None of these
Partial pressure of vapour
Wet bulb temperature

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Mass Transfer
When the liquid phase and vapour phase of a binary system obeys Raoult's and Dalton's law respectively, the relative volatility is the ratio of

Partial pressure of component A to the total pressure
Vapour pressure of component A to the total pressure
Vapour pressure of component A to the partial pressure of A
Vapour pressure of component A to that of component B

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Mass Transfer
Flash distillation is

Used for multicomponent systems like crude refining
Same as simple distillation
Most useful for handling binary systems
Same as differential distillation

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