Evaporation in Pharmaceutical Technology Quiz

Test your knowledge on evaporation in pharmaceutical technology with this quiz. Learn about heat transfer rate, boiling point rise, evaporator classifications, construction and operation, pharmaceutical applications, advantages, and disadvantages.

Created by

@ProdigiousForethought

Study Flashcards Play Quiz

Questions and Answers

What is the process of evaporation?

The removal of a solvent from a solution by vaporization

What is the formula for heat transfer to boiling liquids in an evaporator?

$q = U. A. \Delta T$

What is the boiling point rise (B.P.R.)?

The difference between the boiling point of an aqueous solution and that of water at the same pressure

What does the formula $\Delta T$ represent in heat transfer to boiling liquids in an evaporator?

Temperature differences between the steam and the solution to be evaporated Signup and view all the answers

How is evaporation classified in terms of circulation?

Natural and forced circulation evaporators as well as film evaporators Signup and view all the answers

What is the overall heat transfer coefficient, U, in the formula for heat transfer to boiling liquids in an evaporator?

The combined coefficient for all resistances to heat transfer Signup and view all the answers

What does 'Boiling Point Rise' (B.P.R.) refer to?

The increase in boiling point of a solution compared to the boiling point of the pure solvent at the same pressure. Signup and view all the answers

What is the Duhring rule in relation to aqueous solutions?

It states that the boiling point of an aqueous solution is a linear function of the boiling point of water at the same pressure. Signup and view all the answers

What does 'Hydrostatic head' refer to in relation to the pressure in a liquid?

The pressure exerted by the liquid column on a given point in a liquid. Signup and view all the answers

Which type of evaporator uses natural circulation?

Evaporating still Signup and view all the answers

What is the difference between the boiling points of two different solutions at the same pressure called?

Boiling Point Rise (B.P.R.) Signup and view all the answers

At fixed pressure, under what conditions is the boiling point of a solution higher than that of water?

When the solution has a higher concentration of solute than water. Signup and view all the answers

What happens to the pressure as a liquid rises through tubes?

The pressure decreases as the liquid rises through tubes. Signup and view all the answers

If steam with a temperature of 389 oK is used to heat both water and a 10% NaCl solution, what will be the difference in temperature ($ riangle T$) for water?

$ riangle T = 16$ oK Signup and view all the answers

'Duhrings plot' is used to determine which relationship?

The relationship between boiling points of water and solutions at fixed pressure. Signup and view all the answers

What does 'Pharmaceutical technology (PT-418)' discuss?

Equipment for pharmaceutical processing Signup and view all the answers

Studying That Suits You

Use AI to generate personalized quizzes and flashcards to suit your learning preferences.