Mass Transfer
As the reflux ratio in a distillation coloumn is increased from the minimum, the

Liquid flow increases while the vapor flow decreases for a system
Total cost first decreases and then increases
Number of plates decreases very slowly first and then more and more rapidly
Slope of the operating line in stripping section decreases

ANSWER DOWNLOAD EXAMIANS APP

Mass Transfer
Unsaturated air (with dry bulb temperature and dew point being 35°C and 18°C respectively) is passed through a water spray chamber maintained at 15°C. The air will be cooled

And humidified
At the same relative humidity
And dehumidified with decrease in wet bulb temperature
And dehumidified with increase in wet bulb temperature

ANSWER DOWNLOAD EXAMIANS APP