Evaporation

Question 1

number of pounds of water vaporized per hour

Answer 1

capacity

Question 2

pounds of water vaporized per pound steam initially supplied

Answer 2

economy

Question 3

steam consumption

Answer 3

ratio of capacity (pounds of water vaporized per hour) by economy (pounds of water vaporized per hour by steam initially supplied)

Question 4

In this rule, it stated that the boiling point of solution is linear function of boiling point of solvent

Answer 4

Duhring’s Rule

Question 5

The BP is negligible (no effect) if

Answer 5

if dilute solution or solutions of organic colloids

Question 6

The BP is not negligible (with effect) if

Answer 6

concentrated inorganic solutions

Question 7

used if the enthalpy-composition diagram of solution is available

Answer 7

enthalpy balance equation

Question 8

used if heat capacity and latent heats are available

Answer 8

heat balance eqns

Question 9

4 types of feed in multiple effect evaporation

Answer 9

forward feed, backward feed, mixed feed and parallel feed