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

0.54

1.04

1.24

1.94

0.54

1.04

1.24

1.94

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Mass Transfer
In distillation column design, the McCabe-Thiele procedure is inadequate and a Ponchan-Savarit procedure is needed, when

An azeotrope forms

A total condenser is used

Saturated feed is not used

The latent heat of vaporisation of the more and less volatile components are greatly different

An azeotrope forms

A total condenser is used

Saturated feed is not used

The latent heat of vaporisation of the more and less volatile components are greatly different

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Mass Transfer
Total reflux in a distillation operation requires minimum

Number of plates

All of these

Condenser load

Reboiler load

Number of plates

All of these

Condenser load

Reboiler load

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Mass Transfer
In case of an absorber, the operating

Line always lies above the equilibrium curve

Velocity is more than the loading velocity

Line always lies below the equilibrium curve

Line can be either above or below the equilibrium curve

Line always lies above the equilibrium curve

Velocity is more than the loading velocity

Line always lies below the equilibrium curve

Line can be either above or below the equilibrium curve

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Mass Transfer
Which of the following decreases during evaporative cooling process with recirculated water supply?

Partial pressure of vapour

Wet bulb temperature

None of these

Relative humidity

Partial pressure of vapour

Wet bulb temperature

None of these

Relative humidity

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Mass Transfer
To remove all the moisture from a wet solid it requires exposure to __________ air.

None of these

Highly humid

Perfectly dry

High temperature

None of these

Highly humid

Perfectly dry

High temperature

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Mass Transfer

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 In distillation column design, the McCabe-Thiele procedure is inadequate and a Ponchan-Savarit procedure is needed, when

Mass Transfer Total reflux in a distillation operation requires minimum

Mass Transfer In case of an absorber, the operating

Mass Transfer Which of the following decreases during evaporative cooling process with recirculated water supply?

Mass Transfer To remove all the moisture from a wet solid it requires exposure to __________ air.

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
In distillation column design, the McCabe-Thiele procedure is inadequate and a Ponchan-Savarit procedure is needed, when

Mass Transfer
Total reflux in a distillation operation requires minimum

Mass Transfer
In case of an absorber, the operating

Mass Transfer
Which of the following decreases during evaporative cooling process with recirculated water supply?

Mass Transfer
To remove all the moisture from a wet solid it requires exposure to __________ air.