Properties that can be used to identify the substance(element)
New cards
6
Melting point
point when a solid becomes a liquid
New cards
7
Boiling point (Vaporization)
point when a liquid becomes a gas
New cards
8
Freezing point (Solidification)
point when a liquid becomes a solid
New cards
9
Sublimation
Solid to gas
New cards
10
Density
how closely packed matter is in a given volume
New cards
11
Atomic radius
refers to the space a specific element occupies.
New cards
12
Potential energy
Stored energy
New cards
13
kinetic energy
energy of the motion of particles. (Kind of temperature)
New cards
14
Temperature
the average measure of kinetic energy.
New cards
15
Kelvin
absolute zero (no zeros)
New cards
16
Endothermic
Absorbs heat
New cards
17
Exothermic
Releases heat
New cards
18
Heat of fusion
Solid ⇌ liquid (Melting point)
New cards
19
334 j/g
Heat of fusion for water (On reference table)
New cards
20
heat of vaporization
Liquid ⇌ Gas (Boiling point)
New cards
21
2260 j/g
Heat of vaporization for water (On reference table)
New cards
22
Specific heat capacity
there is a change in temp, but not phase.
New cards
23
4.18 j/gk
Specific Heat capacity of water (On reference table)
New cards
24
q=mHv
equation for heat of vaporization
New cards
25
q=mHf
equation for heat of fusion
New cards
26
q=mC∆T
equation for specific heat capacity
New cards
27
Properties of gasses
-Particles are traveling in straight-line paths and are randomly distributed, -No definite shape or volume, -Large distances between particles, low densities, -Can be compressed, -Can be liquified at low temperatures and high pressures
New cards
28
STP
Standard temperature pressure
New cards
29
Standard pressure
1 atm or 101.3 kPa or 760 torr
New cards
30
Standard temperature
0°C 273°K
New cards
31
Boyle's Law
relationship between pressure and volume (says that the volume occupied by a gas is inversely proportional to the pressure exerted on the gas)
New cards
32
Charles's Law
Describes the relationship between volume and temperature (Says that the volume occupied by a gas is directly proportional to the temperature(in kelvin))
New cards
33
Combined gas Law equation
(P1)(V1)/ T1 = (P2)(V2)/ T2
New cards
34
Uses for combined gas law
to find missing factors such as temperature, volume, or pressure, if one of those has also been changed.
New cards
35
KMT
Kinetic Molecular Theory
New cards
36
properties of KMT (Ideal gas)
-gases move in a random, constant, straight line motion -Have negligible volume -no attraction between particles -If gas molecules do collide no energy is lost or gained
New cards
37
Ideal gas
gas that follows all rules in KMT
New cards
38
Real gas
gas molecules do have a volume and weak attractive forces
New cards
39
High temperature and low pressure
Conditions when Real gas acts most like Ideal gas
New cards
40
Vapor pressure
The pressure that vapor exerts when the temperature of a liquid increases.
New cards
41
calorimetry
How to measure the amount of heat absorbed or released in a chemical reaction.
New cards
42
Specific Heat
the heat required to increase the temperature of a substance by 1 degree
Studied by 62 people
