Mass Transfer
When an unsaturated air-water mixture is heated at constant pressure, then

The relative humidity increases
The relative humidity decreases
The partial pressure of water vapour increases
The specific humidity decreases

ANSWER DOWNLOAD EXAMIANS APP

Mass Transfer
Plate efficiency

Increases due to foaming
Is a function of the mass transfer between liquid and vapour
Increases due to weeping and dumping of liquid
Increases due to liquid entrainment

ANSWER DOWNLOAD EXAMIANS APP