Terms & Definitions Lab 1

Question 1

AZEOTROPE. When and How does this mixture form?

Answer 1

A mixture of two (or more) substances that distills at a constant temperature and with a constant composition, even though separately the components have different boiling points. This usually occurs when intermolecular interactions (H-Bonding) take place.

Question 2

BOILING POINT (B.P.). How is b.p. used to determine a pure substance?

Answer 2

The temperature at which the vapour pressure of a liquid is equal to the atmospheric pressure. The b.p. is constant for a pure substance.

Question 3

CONDENSATE/DISTILLATE

Answer 3

Condensate: The liquid that results when a gas is cooled. Distillate: The condensed liquid obtained from distillation

Question 4

DISTILLATION

Answer 4

The two-part process in which (1) a liquid is boiled, thereby converting it to a vapour; and (2) the vapour is then recompensed to a liquid and collected in a different container from the original one.

Question 5

SLURRY

Answer 5

A suspension of the fine solid particles in a liquid

Question 6

VOLATILE

Answer 6

Tending to evaporate under ordinary temperature and conditions