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

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

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Mass Transfer
In case of a desorber (stripper), the

Temperature always increases
Operating line always lies below the equilibrium curve
Temperature remains unaffected
Operating line always lies above the equilibrium curve

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