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q1 general chemistry > Properties of Liquids > Flashcards

Properties of Liquids Flashcards

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1
Q

Property of liquid that resists an external force

A

Surface Tension

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2
Q

Resistance of a liquid to flow

A

Viscosity

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3
Q

5 properties of liquids

A
  • surface tension
  • viscosity
  • vapor pressure
  • boiling point
  • heat of vaporization
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4
Q

Viscosity: large chained substances have _____ IMF

A

stronger

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5
Q

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

A

stronger

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6
Q

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

A

stronger

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7
Q

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

A

Vapor pressure

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8
Q

What is vapor pressure?

A

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

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9
Q

the higher the kinetic energy, the _____ IMF

A

weaker

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10
Q

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

A

weaker, because particles will have difficulty escaping the gas

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11
Q

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

A

Boiling point

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12
Q

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

A

greater, greater

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13
Q

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

A

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

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14
Q

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

A

Heat of Vaporization

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15
Q

the higher the boiling point, the _____ heat of vaporization

A

greater

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16
Q

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

A

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

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17
Q

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

A

Surface tension

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18
Q

____ is the resistance of liquid to flow

A

Viscosity

19
Q

The ____ the intermolecular forces the more viscous the substance

A

greater

20
Q

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

A

boiling point

21
Q

Boiling point generally ____ as a molar heat of vaporization increases

A

increases

22
Q

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

A

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

23
Q
  1. Why does it take a shorter time to boil water in the highlands than in the low lands
A

low atmospheric pressure, high vapor pressure

24
Q

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

A

Hydrogen bonding

25
Q

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

A

Low

26
Q

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

A

larger

27
Q

Water turns into ice at what temperature and atm?

A

0 degrees celsius and 1 atm

28
Q

Water becomes gas (steam) at what temperature?

A

100 degrees celsius

29
Q

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

A

partially, oxygen, partially, hydrogen

30
Q

True or False.

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

A

True. Molecules can move closer together when in liquid form

31
Q

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

A

faster, kinetic energy

32
Q

What are the three phases of matter?

A

solid, liquid, gas

33
Q

Phases of Matter:

gas to liquid?

A

Condensation

34
Q

Phases of Matter:

gas to solid?

A

Deposition

35
Q

Phases of Matter:

liquid to gas?

A

Evaporation

36
Q

Phases of Matter:

liquid to solid?

A

Freezing

37
Q

Phases of Matter:

solid to liquid?

A

Melting

38
Q

Phases of Matter:

solid to gas?

A

Sublimation

39
Q

Identify the change in phase of matter.

Moth balls left inside the cabinet for a period of time

A

Sublimation

40
Q

Identify the change in phase of matter.

Making of ice candy

A

Freezing

41
Q

Identify the change in phase of matter.

Ether left uncovered over a period of time

A

Evaporation

42
Q

Identify the change in phase of matter.

Ice cream left outside of the freezer

A

Melting

43
Q

Identify the change in phase of matter.

Droplets of water forming over leaves

A

Condensation

q1 general chemistry (3 decks)

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