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15
×
Which of the following is TRUE about most gases?
They expand to completely fill their container.
Their particles are very close together.
They have a fixed volume.
All of their particles are the same size.
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15
×
A balloon has an initial volume of 150 mL at 25 degrees Celsius. If the temperature is increased to 75 degrees Celsius, what is the final volume?
450 mL
150 mL
175 mL
50 mL
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15
×
Temperature is a measure of:
The amount of heat a substance has.
The number of particles a substance has.
The average potential energy of the particles in a substance
The average kinetic energy of the particles in a substance.
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15
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1000 mL of a gas at 15 atm is compressed to 500 mL. What is its new pressure?
30 atm
3 atm
2 atm
5 atm
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banana
Go to last place!
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magnet
Take 5 points!
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rocket
Go to first place!
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baam
Lose 25 points!
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boom
Lose 50 points!
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seesaw
Swap points!
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gift
Win 25 points!
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thief
Give points!
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25
15
×
What is mass?
the weight of an object
the amount of matter in an object
the volume of an object
none of these are correct
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15
×
What does b represent in the van der Waals equation?
The volume of the container not filled by the gas
The volume of the gas overall
The volume of the container
The volume of the gas molecules
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15
×
What does the Maxwell-Boltzmann curve tell us?
The probability of a particle's curve
he probability of massive particles
The probability of a particle's speed
The probability of a particle's direction
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15
×
Assuming the volume is held constant, what happens to the pressure of a gas when the absolute temperature doubles?
It remains unchanged.
It is doubled.
It is quadrupled.
It is halved.
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trap
No points!
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rocket
Go to first place!
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gift
Win 25 points!
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lifesaver
Give 10 points!
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15
×
A container has a volume of 53.9 L. Assuming it is at STP, how many moles of gas particles does it contain?
76.3 mol
2.41 mol
1,200 mol
0.416 mol
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15
×
If someone is measuring pressure, they might use any of the following units EXCEPT _____.
Pounds
Millimeters of mercury
Atmospheres
Torr
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seesaw
Swap points!
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shark
Other team loses 20 points!
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fairy
Take points!
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20
25
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baam
Lose 25 points!
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15
×
Why would a scientist have difficulty observing the behavior of an ideal gas?
Because an ideal gas is theoretical, and hence not real.
Because all ideal gases are invisible.
Because an ideal gas cannot be compressed.
Because an ideal gas is made of molecules that cant be seen
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15
×
What is the name of the sum of atomic masses (for molecular compounds) in a chemical formula?
total mass
formulaic mass
atomic mass
molecular mass
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