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Mass Transfer

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

Mass Transfer /
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.

Drying of a wet solid under constant drying conditions means the exposure of the wet solid to the air of constant____________________? Read More »

Mass Transfer

With the lowering of equilibrium pressure, at a given temperature, the amount of adsorbate on the adsorbent______________________?

Mass Transfer /
With the lowering of equilibrium pressure, at a given temperature, the amount of adsorbate on the adsorbent______________________?

A. Increases
B. Decreases
C. Remain same
D. Either A. or B., depends on the system

With the lowering of equilibrium pressure, at a given temperature, the amount of adsorbate on the adsorbent______________________? Read More »

Mass Transfer

A pure drug is administered as a sphere and as a cube. The amount of drug is the same in the two tablets. Assuming that the shape and size do not influence the mass transfer, the ratio of rate of dissolution in water at t = 0 for the cubic to spherical tablet is___________________?

Mass Transfer /
A pure drug is administered as a sphere and as a cube. The amount of drug is the same in the two tablets. Assuming that the shape and size do not influence the mass transfer, the ratio of rate of dissolution in water at t = 0 for the cubic to spherical tablet is___________________?

A. 0.54
B. 1.04
C. 1.24
D. 1.94

A pure drug is administered as a sphere and as a cube. The amount of drug is the same in the two tablets. Assuming that the shape and size do not influence the mass transfer, the ratio of rate of dissolution in water at t = 0 for the cubic to spherical tablet is___________________? Read More »

Mass Transfer