The drying time between fixed moisture content within diffusion controlled ‘falling rate period’ is proportional to (assuming that drying occurs from all surfaces of the solid) (where, T = thickness of the solid) ?

Related Mcqs:

As the reflux ratio, in a continuous counter-current extraction is increased, the number of stages_______________________?

A. Increase B. Decrease C. Remain unchanged D. Can either increase or decrease, depends on the system...

Co-current absorbers are usually used when the gas to be dissolved in the liquid is ___________________?

A. Sparingly soluble B. Highly soluble C. A pure substance D. A mixture...

In most of the mechanically agitated liquid-liquid extractors, baffles or horizontal compartmental plates are provided, which helps in_________________?

A. Reducing the axial mixing B. Increasing the rate of extraction C. Maintaining the concentration difference between the two phases D. All A , B & C....

Drying of a wet solid under constant drying conditions means the exposure of the wet solid to the air of constant______________________?

A. Humidity B. Velocity C. Temperature D. All A., B. & C....

In the layout plan for a vacuum distillation unit, operating at 60 mm Hg, supported by a barometric condenser, the appropriate place for the location of vacuum drum for collecting the distillate will be_____________________?

A. At ground level B. 2 metres above the ground C. 5 metres above ground D. 10 metres above ground...