Matter And Energy Flashcards
1
Q
1 cal = ?
A
418 j
2
Q
Forms of energy
A
Light, electrical, heat, kinetic, potential
3
Q
Temperature
A
- is not a form of energy
- a measurement of the average kinetic energy
4
Q
Absolute zero
A
0 k
k = C + 273
5
Q
Kinetic energy
A
Energy of motion
6
Q
Potential energy
A
Stored energy
7
Q
Law of conservation energy
A
Energy is neither created nor destroyed in a chemical reaction
8
Q
Endothermic reaction
A
- Absorbs energy
- thermal energy -> chemical energy
- A + Heat = B
9
Q
Exothermic reaction
A
- releases energy
- chemical energy -> thermal energy
- C = D + Heat
10
Q
Exothermic chart
A
| |--| | | | | \_\_\_\_| | | | | | | |\_\_\_\_ |\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_
11
Q
Endothermic chart
A
| |---| | | | | | |\_\_\_\_ | | | | | \_\_\_\_| |\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_
12
Q
Phases of matter: Solid
A
- definite shape
- definite volume
- regular geometric shape
- crystalline structure
- particles are vibrating w/o changing relative positions
13
Q
Phases of matter: liquid
A
- no definite shape (takes shape of container)
- definite volume
14
Q
Phases of matter: gas
A
- no definite shape
- no definite volume
- takes shape and volume of container
15
Q
solid to liquid
A
Melting/fusion
16
Q
Liquid to gas
A
Boiling/evaporation/vaporization
17
Q
Gas to liquid
A
Condensation
18
Q
Liquid to solid
A
Freezing/solidification/crystallization
19
Q
Solid to gas
A
Sublimation