Gaseous diffusivity at atmospheric pressure is of the order of _____________________ cm2/second?

Related Mcqs:

In case of cooling towers, the ratio of the rates of heat and mass transfer is indicated by the ______________ number ?

A. Lewis B. Grashoff C. Sherwood D. None of these...

When an unsaturated air-water mixture is heated at constant pressure, then ____________________ ?

A. The partial pressure of water vapour increases B. The specific humidity decreases C. The relative humidity increases D. The relative humidity decreases...

In a gas-liquid absorption column, for obtaining the maximum absorption efficiency___________________?

A. Liquid stream should be distributed uniformly B. Gas stream should be distributed uniformly C. Both gas as well as liquid streams should be distributed uniformly D. By passing should be completely avoided...

High pressure at the bottom of a distillation tower handling heat sensitive materials results in _____________________?

A. Thermal decomposition of bottoms B. Increased relative volatility C. Erosion of the tower D. Very efficient operation...

Use of natural draft cooling tower is practised, when the air has low ?

A. Humidity B. Temperature C. Both A. & B. D. Neither A. nor B....