Properties of Liquids

Question 1

intermolecular forces that bind like molecules to one another (e.g: hydrogen bonding)

Answer 1

cohesive forces

Question 2

intermolecular forces that bind a substance to a surface

Answer 2

adhesive forces

Question 3

how and why does a meniscus form

Answer 3

due to the adhesive forces of a particle being stronger than cohesive forces

Question 4

in - , adhesive forces are greater than cohesive forces; in - , cohesive forces are greater than adhesive forces

Answer 4

water, mercury

Question 5

it is the property of a liquid to resist an external force thus assuming a lesser surface area

Answer 5

surface tension

Question 6

surface tension is attributed to the - and - forces between and among the molecules, particularly at the surface of the liquid

Answer 6

strong attractive, cohesive

Question 7

the resistance of a liquid to flow; thickness or thinness of a liquid

Answer 7

viscosity

Question 8

the greater the - , the more viscous the substance

Answer 8

intermolecular forces

Question 9

pressure exerted by its vapor in thermodynamic equilibrium with its condensed phases (solid or liquid) at a given temperature in a closed system

Answer 9

vapor pressure

Question 10

a substance with a high vapor pressure at normal temperature is often referred to as -

Answer 10

volatile

Question 11

as the temperature of a liquid increases, - also increases. the number of molecules transformed into a vapor also increase, thereby increasing -

Answer 11

energy of the molecules, vapor pressure

Question 12

rate of - = rate of -

Answer 12

evaporation, condensation

Question 13

the temperature at which the vapor pressure eauals the surrounding atmospheric pressure

Answer 13

boiling point

Question 14

the temperature at which the liquid bouled under an atmospheric pressure of 1 atm is referred to as its -

Answer 14

normal boiling point

Question 15

it is the amount of heat rewuired to vaporize one mole of a substance at its boiling point

Answer 15

molar heat of vaporization

Question 16

the application of - disrupts the intermolecular forces of attraction of the liquid molecules and allows them to vaporize

Answer 16

heat

Question 17

the molar heat of vaporization is also determined by the -

Answer 17

strength of intermolecular forces between molecules

Question 18

another way surface tension manifests; the rise of liquids up very narrow tubes

Answer 18

capillary action

Question 19

capillary action is limited by - and - forces

Answer 19

adhesive, cohesive