Mass Transfer
The cooling effect in a cooling tower can not be increased by

None of these
Lowering the barometric pressure
Reducing the humidity of entering air
Increasing the air velocity over the wet surfaces

ANSWER DOWNLOAD EXAMIANS APP

Mass Transfer
In an operating distillation column, the

Highest temperature is encountered at the top of the column
Driving force for the liquid flow is its specific weight
Driving force for the vapor flow is the pressure drop, as the pressure decreases gradually from the bottom to the top of the column
Vapors and liquids are at their dew point and bubble point respectively

ANSWER DOWNLOAD EXAMIANS APP

Mass Transfer
If the solubilities of different components (in a liquid-liquid extraction system) increase with rise in temperature, then the temperature above which they dissolve completely is known as the critical solution temperature (CST or consolute temperature). If solubilities increase with decrease in temperature, then CST is the temperature below which they dissolve completely. If a binary system has no critical solution temperature, it implies that

The system comprises of miscible liquids
On heating, a vapor phase will appear ; while on cooling, a solid phase will appear
The system comprises of partially mis-cible liquids
The system comprises of an azeotrope

ANSWER DOWNLOAD EXAMIANS APP