Mass Transfer
Mass transfer co-efficient is directly proportional to DAB according to the __________ theory.

None of these
Surface-renewal
Film
Penetration

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

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