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WorksheetsGas Law Practice
Total questions: 13
Worksheet time: 58mins
A balloon is filled with 0.75 moles of helium at 290 K. If the balloon expands to 2.3 L, what pressure (in kPa) is exerted by the helium?
786 kPa
7.76 kPa
0.00127 kPa
293 kPa
900 moles of argon gas are stored at 50oC and 0.98 atm. What volume does the gas fill?
24 400 L
3 770 L
381 600 L
2 465 000 L
A syringe of gas is held at 0.022 L by exerting 890 mmHg of pressure on it. If the surrounding temperature is 291 K, how many moles of gas does the syringe contain?
0.0011 mol
930 mol
0.0081 mol
124 mol
A foul syringe of foul gas holds H2S at 400 mmHg and CO at 223 mmHg. What is the total pressure in the syringe?
623 mmHg
177 mmHg
89 200 mmHg
1.79 mmHg
A canister of air is pressurized to 303 kPa. Inside the cannister, N2 has a partial pressure of 212 kPa. What is the partial pressure of O2 ?
91 kPa
515 kPa
64 200 kPa
1.42 kPa
A mixture of He, Kr, and Xe exerts a pressure of 7.91 atm. If He exerts 3.70 atm and Kr exterts 3.82 atm, what pressure does Xe exert?
0.39 atm
4.21 atm
4.09 atm
15.4 atm
At 1.01 atm (ground level), a balloon has a volume of 1.8 L. If it high enough that the pressure is 0.76 atm, what will the new volume be?
2.4 L
0.42 L
1.4 L
3.6 L
An airtight, rigid container of PH3 was collected at 285 K and 760 mmHg. If the temperature drops to 268 K during a winter storm, what will the new pressure in the container be?
715 mmHg
0.00140 mmHg
808 mmHg
1310 mmHg
A flexible container starts at 400 L when it contains 64 moles of He. However, it begins to leak and shrinks to 249 L. How many moles of He does it contain now?
40. mol He
0.025 mol He
103 mol He
713 mol He
When a tire contains 1.3 moles of gas, its pressure reads at 0.65 atm. More gas is pumped in, until it contains 2.1 moles of gas. What is the pressure now?
1.1 atm
0.95 atm
0.40 atm
4.1 atm
At what temperature must a 2.4 mol sample of gas be held in order to fill a 10.0 L container at 550 kPa ?
276 K
0.00363 K
27 913 K
112 K
The temperature of a gas is ________ related to the average kinetic energy of its particles.
inversely
directly
Which of these are postulates of the kinetic molecular theory?
Gas particles move in constant, random motion.
Gas particles turn into liquid particles when they move slowly.
Gas particles have elastic collisions.
Gas particles have negligible volume.
