Properties of Liquids

Question 1

Property of liquid that resists an external force

Answer 1

Surface Tension

Question 2

Resistance of a liquid to flow

Answer 2

Viscosity

Question 3

5 properties of liquids

Answer 3

• surface tension
• viscosity
• vapor pressure
• boiling point
• heat of vaporization

Question 4

Viscosity: large chained substances have _____ IMF

Answer 4

stronger

Question 5

Viscosity: the more atoms that can attract one another, the _____ the IMF

Answer 5

stronger

Question 6

Viscosity: the more viscous the liquid , the _____ the IMF

Answer 6

stronger

Question 7

When liquid or solid state is made to evaporate in a closed container, the gas exerts pressure above the liquid

Answer 7

Vapor pressure

Question 8

What is vapor pressure?

Answer 8

Pressure exerted by vapor when it is in equilibrium with its liquid or solid state

Question 9

the higher the kinetic energy, the _____ IMF

Answer 9

weaker

Question 10

the stronger the IMF, the ______ VP. Explain why.

Answer 10

weaker, because particles will have difficulty escaping the gas

Question 11

Property of liquid where the temperature at which the vapor pressure of a liquid is equal to atmospheric or external pressure

Answer 11

Boiling point

Question 12

Boiling point: the higher the IMF, the _____ energy needed to break the bonds, ____ boiling point

Answer 12

greater, greater

Question 13

Will water take longer to boil in highlands as compared to that in the lowlands?

Answer 13

No, because Higher altitude (highlands) means lower atmospheric pressure which means greater vapor pressure thus, lowering the IMF and resulting to lower BP

Question 14

Property of Liquid where amount of heat required to vaporize 1 mole of a substance at its boiling point

Answer 14

Heat of Vaporization

Question 15

the higher the boiling point, the _____ heat of vaporization

Answer 15

greater

Question 16

Why is the solid state of water lighter than its liquid state?

Answer 16

Ice has low density because of the hollow spaces between its hexagonal arrangement

Question 17

It is the property of liquids that resists an external force and does assume a lesser surface area

Answer 17

Surface tension

Question 18

____ is the resistance of liquid to flow

Answer 18

Viscosity

Question 19

The ____ the intermolecular forces the more viscous the substance

Answer 19

greater

Question 20

The _____ of a liquid is the temperature by which its vapor pressure is equal to the external or atmospheric pressure

Answer 20

boiling point

Question 21

Boiling point generally ____ as a molar heat of vaporization increases

Answer 21

increases

Question 22

What phenomena exemplifies the application of surface tension? (2)

Answer 22

Droplets of water on leaves and water strider insects walking on the surface of water

Question 23

1. Why does it take a shorter time to boil water in the highlands than in the low lands

Answer 23

low atmospheric pressure, high vapor pressure

Question 24

What type of bonding is responsible for the high viscosity of honey a concentrated solution of sugar

Answer 24

Hydrogen bonding

Question 25

Substances with strong intermolecular forces will have _____ vapor pressure because the particles will have difficulty escaping as a gas

Answer 25

Low

Question 26

Methane has a higher boiling point and heat of vaporization than Argon because methane has a ______ surface area

Answer 26

larger

Question 27

Water turns into ice at what temperature and atm?

Answer 27

0 degrees celsius and 1 atm

Question 28

Water becomes gas (steam) at what temperature?

Answer 28

100 degrees celsius

Question 29

A water molecule has one _______ negative _____ atom and two ______ positive _____ atoms

Answer 29

partially, oxygen, partially, hydrogen

Question 30

True or False. Liquid water is denser than ice. Why or why not?

Answer 30

True. Molecules can move closer together when in liquid form

Question 31

When ice is heated, there is a _____ movement of molecules because of the increase of ___________

Answer 31

faster, kinetic energy

Question 32

What are the three phases of matter?

Answer 32

solid, liquid, gas

Question 33

Phases of Matter: gas to liquid?

Answer 33

Condensation

Question 34

Phases of Matter: gas to solid?

Answer 34

Deposition

Question 35

Phases of Matter: liquid to gas?

Answer 35

Evaporation

Question 36

Phases of Matter: liquid to solid?

Answer 36

Freezing

Question 37

Phases of Matter: solid to liquid?

Answer 37

Melting

Question 38

Phases of Matter: solid to gas?

Answer 38

Sublimation

Question 39

Identify the change in phase of matter. Moth balls left inside the cabinet for a period of time

Answer 39

Sublimation

Question 40

Identify the change in phase of matter. Making of ice candy

Answer 40

Freezing

Question 41

Identify the change in phase of matter. Ether left uncovered over a period of time

Answer 41

Evaporation

Question 42

Identify the change in phase of matter. Ice cream left outside of the freezer

Answer 42

Melting

Question 43

Identify the change in phase of matter. Droplets of water forming over leaves

Answer 43

Condensation