Brainscape's Knowledge GenomeTM

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


See full index

Chemisty > Test 2 > Flashcards

Test 2 Flashcards

1
Q

Joule

A

Si unit of energy

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

System

A

Part of the universe we are looking at

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

Surroundings

A

Everything else

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

Heat

A

Energy that is transferred from a hotter object to a cooler one

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

Enthalpy (delta h)

A

The heat content and flow die to chemical or physical changes

Ex ice breaking = endothermic reaction

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

Vaporization

A

Liquid to gas

Dh > 0

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

Condensation

A

Gas to liquid

Dh

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

Fusion

A

Solid to liquid

Dh > 0

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

Solidification

A

Liquid to solid

Dh

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

Sublimation

A

Solid to gas

Dh > 0

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

Deposition

A

Gas to solid

Dh

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

Thermochemical equation

A

Equation that includes hangs in heat

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

Specific heat capacity

A

Amount of heat 1.0 grams of a substance can absorb until it’s temperature increases by 1 degree Celsius

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

Hess law

A

If a reaction is carried out in a number of steps, dh for the overall reaction is the sum of dh for each individual step

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

Standard enthalpy heat of formation

A

Change in enthalpy that happens when 1 mol of a compound is formed from its elements in their standard state

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

The enthalpy ( heat ) of a reaction [dh rxn]

A

Difference between the standard heats of formation of all the reactants and products

Dh rxn= dh formation of products - dh formation of reactants

17
Q

Solubility rules

A

All nitrates are soluble
Sodium anything is soluble
Potassium is soluble

18
Q

Endothermic

A

Heat moves from the surroundings into a system

19
Q

Enthalpy of vaporization

A

Energy required to transform a given quantity of substance into a gas

20
Q

Symbol for energy content of a molecule is

A

H

21
Q

Change in heat content

A

Q

Also dh

22
Q

Heat capacity

A

Amount of energy required to raise the temperature of an object

23
Q

Phase change

A

A substance going from one physical state to another. Accompanied by a change in heat energy

Chemisty (6 decks)

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