Mass Transfer
Tower diameter may be decreased by

Use of increased tray spacing
Using higher reflux ratio
Increasing the liquid flow rate
Increasing the vapour flow rate

ANSWER DOWNLOAD EXAMIANS APP

Mass Transfer
For absorbing a sparingly soluble gas in a liquid

Liquid side mass transfer co-efficient should be increased
Liquid side mass transfer co-efficient should be decreased
Gas side mass transfer co-efficient should be increased
Mass transfer co-efficient must be kept constant

ANSWER DOWNLOAD EXAMIANS APP