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- 1. Multiple Choice
According to ___________, if you decrease the volume of a container of gas and hold the temperature constant, the pressure of the gas will increase.
Bernoulli's principle
Boyle's Law
Charles's Law
Archimedes' principle
- 2. Multiple Choice
At STP (Standard Temperature 273 K and Pressure 101.3 kPa), a gas has a volume of 3.0 L. What is the new volume if the pressure increases to 303.9 kPa?
9 L
1 L
9 kPa
1 kPa
- 3. Multiple Choice
What is diffusion?
The movement of gas particles from a higher concentration to a lower concentration.
The rate at which gas flows through the air.
An explosion of gases.
The ability of a gas to move from high pressure to a low pressure.
- 4. Multiple ChoiceAt a constant pressure, the volume decreases. What happens to the temperature?increasesdecreasesstays the same
- 5. Multiple Choice
A sample of pure oxygen gas has a volume of 2.00 L at a pressure of 101.3 kPa. What is the new pressure is the volume is decreased to 0.5 L?
203 kPa
101 kPa
25 kPa
405 kPa
- 6. Multiple Choice
What are the values for STP?
0 K and 1 atmosphere
0ºC and 1 atmosphere
32ºF and 1 atmosphere
100ºC and 1 atmosphere
- 7. Multiple Choice
A sample of O2 gas has a volume of 2.0 L, a Temperature of 298 K, and a pressure of 100 kPa. Calculate the number of moles of oxygen. R = 8.314
495,514 moles of oxygen
0.0807 moles of oxygen
5.578 moles of oxygen
12.39 moles of oxygen
- 8. Multiple Choice
What is zero degrees Celsius converted to Kelvin?
100
273
373
212
- 9. Multiple Choice
A 7.00 L sample of argon gas at 420 K exerts a pressure of 625 kPa. If the gas is compressed to 1.25 L and the temperature is lowered to 350 K, what will be its new pressure in kPa?
0.000238 kPa
2916 kPa
4200 kPa
93.0 kPa
- 10. Multiple Choice
Which of the following explains the change in pressure when volume increases?
As the volume increases, the particles slow down, causing less collisions and less pressure.
As the volume increases, the particles speed up, causing more collisions and more pressure.
As the volume increases, the particles have more space to move and collide less with the walls , causing pressure to decrease.
As the volume increases, the particles have more space to move and collide less with the walls , causing pressure to increase.
- 11. Multiple Choice
Calculate the volume that a 0.323-mol sample of a gas will occupy at -8oC and a pressure of 0.900 atm.
R = 0.0821
7.18 L
7.81 L
4.63 L
4.36 L
- 12. Multiple Choice
What is movement of one material through another (higher concentration to lower concentration)?
diffusion
temperature
barometer
pressure
- 13. Multiple Choice
The volume of a gas is increased from 150.0 mL to 350.0 mL when heated. If the original temperature of the gas was 25oC, what is the final temperature?
58 K
176 K
128 K
695 K
- 14. Multiple Choice
What is an instrument used to measure atmospheric pressure?
barometer
thermometer
calorimeter
Kelvin
- 15. Multiple Choice
At STP (Standard Temperature and Pressure), a gas has a volume of 3.0 L. What is the new volume if the pressure increases to 303.9 kPa?
9.0 L
1.0 L
9.0 kPa
1.0 kPa
- 16. Multiple Choice
A sample of Argon gas occupies a volume of 1.8 L at 2.8 atm. What will its volume be at 1.2 atm?
.77 L
1.87 L
3.0 L
4.2 L
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