Q. In distillation columns, the number of bubble caps per tray primarily depends upon the

View solution

Q. In distillation, overhead product contains

View solution

Q. With increase in pressure, the relative volatility for a binary system

View solution

Q. Low viscosity absorbent is preferred for reasons of

View solution

Q. Mass transfer co-efficient (K) and diffusivity (D) are related according to film theory as

View solution

Q. Drying operation under vacuum is carried out to

View solution

Q. Air initially at 101. 3 kPa and 40°C and with a relative humidity of 50%, is cooled at constant pressure to 30°C. The cooled air has a

View solution

Q. Separation of two or more components of a liquid solution can not be achieved by

View solution

Q. Stefan's law describes the mass transfer by

View solution

Q. At minimum reflux ratio for a given separation

View solution

Q. The mass diffusivity, the thermal diffusivity and the eddy momentum diffusivity are same for, NPr = NSc = __________

View solution

Q. Dew point of a gas-vapour mixture

View solution

Q. In a packed absorption tower, if the equilibrium and operating lines are both straight lines, then the ratio, HETP/HTUOG __________ the absorption factor.

View solution

Q. Which of the following plays an important role in problems of simultaneous heat and mass transfer ?

View solution

Q. In case of an absorber, the operating

View solution

Q. Total reflux in a distillation operation requires minimum

View solution

Q. The amount of steam required per unit quantity of distillate in case of steam distillation will be reduced by

View solution

Q. The difference of wet bulb temperature and adiabatic saturation temperature of unsaturated mixture of any system is

View solution

Q. Fenske's equation for determining the minimum number of theoretical stages in distillation column holds good, when the

View solution

Q. When the temperature and humidity of air is low, we usually use __________ draft cooling tower.

View solution