Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Chem 122 > Second Test > Flashcards

Second Test Flashcards

You may prefer our related Brainscape-certified flashcards:
AP® Chemistry flashcards Periodic Table flashcards Chemistry 101 flashcards Organic Chemistry 101 flashcards
0
Q

LCP-add product

A

Reaction should shift to consume product

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
1
Q

LCP- add reactant

A

Reaction should shift to consume some of the reactant

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

LCP-decrease volume

A

Increases pressure of gasses, system will respond trying to reduce pressure, shift toward side with less moles.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

LCP- increase volume

A

Shift toward side with more moles

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

LCP- increase pressure

A

(Like added inert gas) would cause no change

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

LCP-increase temperature (endothermic

A

Increases the equilibrium constant K, shifts toward products (shift toward the endothermic reaction)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

LCP-increase temp (exothermic

A

K decreases, shift toward reactants (the endothermic pathway)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Le Chatelier’s Principle

A

Start with a reaction at equilibrium. Stress the equilibrium. The reaction will return to equilibrium so as to offset the stress.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What does boiling point depend on?

A

Applied pressure

Substance

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Vapor pressure is a ____.

A

Constant for a given liquid and temp

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Vapor pressure does not depend on…

A

Volume of the container

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What determines the rate of condensation?

A

The gas density (determined by pressure)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

What determines the rate of evaporation?

A

Temperature

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

For every temperature there’s only one ____ that will allow the rates of condensation and evaporation to be equal.

A

Pressure

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

For every pressure there’s only one ____ that will allow the rates of condensation and evaporation to be equal.

A

Temperature

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

The boiling point of a substance occurs where the vapor pressure is equal to the…

A

Applied pressure (or atmospheric pressure)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Higher rate of evaporation =

A

Vapor pressure is higher

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

Higher vapor pressure =

A

Lower boiling point

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

What causes a higher rate of evaporation?

A

Weaker IMFs

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

Boiling point varies with the strength of ____ in the liquid

A

IMFs

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

High BP means ____ IMFs

A

Strong

21
Q

Low BP means _____ IMFs

A

Weak

22
Q

Boiling point increases as we go _____ a group in the periodic table

A

Down

23
Q

Molecules without ____ have low boiling points

A

Dipoles

24
Q

An atom with more electrons and protons will have larger…

A

London dispersion forces

25
Q

Hydorgen bond IMFs occur when…

A

The lone pairs on one molecule attract the hydrogen on another molecule

26
Q

Hydrogen bonding causes ____ BP

A

High

27
Q

Dispersion forces are greater than dipole-dipole forces when….

A

The two molecules are very different sizes

28
Q

Dipole-dipole forces are greater than dispersion forces when…

A

The molecules are similar in size

29
Q

Vapor pressure of solution is ____ than Pvap of pure solvent

A

Lower

30
Q

Adding solute _____ Pvap

A

Decreases

31
Q

Adding solute to a solvent…

A

Lowers rate of evaporation, which lowers rate of condensation and lowers vapor pressure

32
Q

Adding solute ____ BP, by _____

A

Raises, lowering Pvap

33
Q

The more volatile component will be more present in….

A

The vapor phase

34
Q

Adding solute to pure solvent ____ the freezing point

A

Lowers

35
Q

Melting ____ affected by adding a solute to solution

A

Is not initially

36
Q

Rate of ____ is lowered when solute is added to solvent

A

Freezing

37
Q

Rate of melting is lowered to reach equilibrium with the lowered rate of freezing by…

A

Lowering temperature at which the liquid melts/freezes

38
Q

Q greater than K

A

shift toward reactants

39
Q

Q less than K

A

shift toward products

40
Q

Q=K

A

reaction at equilibrium

41
Q

Gas to Solid

A

Deposition

42
Q

Solid to Gas

A

Sublimation

43
Q

Solid to Liquid

A

Melting (fusion)

44
Q

Liquid to Solid

A

Freezing

45
Q

Liquid to Gas

A

Evaporation (Vaporization)

46
Q

Gas to Liquid

A

Condensation

47
Q

Exothermic phase changes

A

Condensation, Freezing, Deposition

49
Q

Endothermic phase changes

A

Evaporation, Melting, Sublimation

50
Q

Henry’s Law

A

At a constant temperature, the amount of a given gas that dissolves in a given type and volume of liquid is directly proportional to the partial pressure of that gas in equilibrium with that liquid.

Chem 122 (8 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions