Mass Transfer
On moving the feed line (q-line) from saturated liquid feed (vertical position) to saturated vapor feed (horizontal feed), if the slope of both the operating lines are to be increased, then it will result in

Greater degree of separation with a fixed number of trays
Increased reflux ratio
Increased reboiler load
None of these

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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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