What is the state of matter whose atoms are tightly packed, and has a definite shape and definite volume?
Solid
100
Melting changes a substance from a _______ to a _______
solid to a liquid
100
In a closed container (volume and temperature remain constant), if the number of particles is increased, what will the gas pressure do?
Increase
100
20 degrees Celsius is equal to what in Kelvin?
293 K
100
What is the result of force distributed over an area?
Pressure
200
State of matter whose atoms move around freely, and can fill any container.
Gas
200
An exothermic change __________ heat.
releases
200
Which law relates the volume of a gas to its temperature (and shows they are directly proportional)?
Charles Law
200
State the combined gas law.
P1V1 = P2V2
T1 T2
200
What is the temperature (in Kelvin) at absolute zero?
0 K
300
In which state(s) of matter, can materials take the shape of their containers?
Liquid and Gas
300
The phase change that occurs when a substance goes from a solid to a gas/vapor without changing to a liquid first.
sublimation
300
How is pressure impacted, if the volume increases (assuming everything else remains constant)?
Pressure decreases.
300
initial volume = 11L
initial temperature = 50K
final temperature = 5K
Find the final volume!
1.1 L
300
How many hands should you have on the wheel when driving??????????????????????????????????
TWO HANDS
400
Which state of matter has a definite volume, but a variable shape?
Liquid
400
During which of the following phase changes, do the atoms become more orderly?
a)melting
b)deposition
c)boiling
d)vaporization
b) Deposition
400
What happens to the volume, if temperature decreases (assuming everything else remains constant)?
Volume decreases
400
If the pressure of a gas at 50mL is 20atm, what will be the pressure if the volume is dropped to 3mL?
33.33atm
400
In Boyle's law, it is stated that volume is inversely proportional to pressure. For this to be true, temperature and number of particles must be:
a)decreasing
b)constant
c)doubling
B) Constant
500
Gases have a _________ shape and __________ volume.
Variable and Variable
500
the phase change that is the opposite of sublimation
deposition
500
How is pressure impacted, if volume decreases (assuming all other factors remain constant)?
Pressure increases
500
A gas in a sealed container (5L) has pressure of 111kPa at 23 degrees Celsius. What will be the pressure if the temperature rises to 475 degrees Celsius?
283.4 kPa
500
What are the three factors which affect the pressure of an enclosed gas?