Boiling Point and Vapor Pressure - Solution

Question 1

Evaporation

Answer 1

Molecules on the surface of a liquid
gain enough KE to break from the liquid and enter
the gas phase (ex. water on the floor or open container evaporates

Question 2

Boiling

Answer 2

Liquid turns to a gas at any point in the
container (not just the surface).

Question 3

Vapor Pressure

Answer 3

The pressure that gas particles exert
due to collisions above surface of a liquid.

Question 4

Vapor Pressures varies DIRECTLY with TEMPERATURE,
REGARDLESS OF THE VOLUME

Question 5

relationship between intermolecular forces and vapor pressure

Answer 5

stronger intermolecular forces = lower vapor pressure

Question 6

Boiling Point

Answer 6

Temperature at which the
Vapor pressure is equal to Atmospheric Pressure

Question 7

Normal Boiling Point

Answer 7

Temperature at which the vapor pressure
exerted by the liquid is equal to Standard
Atmospheric Pressure;
1 atm, 101.3 Kpa, 760 torr or/mmHg

Question 8

relationship between temp and vapor pressure

Answer 8

As temperature
increases so does the
vapor pressure of a
liquid

Question 9

Colligative Properties

Answer 9

When you take a pure substance,( ex. water ) and add any other substance to it- you affect the original substance’s boiling point and
freezing point.

Question 10

*As concentration Increases ;
The more moles of particles of the solute exist;

Answer 10

know this relationship

Question 11

relationship between freezing point and concentration

Answer 11

higher concentration will have lower freezing point

Question 12

vapor pressure is equal to the atmospheric pressure the liquid will

Answer 12

boil