Скачать или смотреть Gases Chemistry Practice Questions #4 |AP, CLEP & NEET - Dr K

Here are the 10 Chemistry Practice Questions on Gases. These chemistry practice questions will help you test your understanding on Kinetic Molecular theory of gas, Ideal gas, Real gas, Law of combining volumes, Dalton's law, Boyle's law, Charles' law, Combined gas law, Ideal gas law, gas density, molar volume and gas stoichiometry.

If you're preparing for AP/CLEP/NEET exams, you're in luck! Use these carefully selected Chemistry Practice Questions to help you in your preparation!

Here are the 10 Chemistry Practice Questions discussed in the video. Feel free to try them out on your own before watching the video. According to the exam, you should spend 1 - 1.5 minutes on each question.

CHEMISTRY PRACTICE QUESTIONS https://chemsimplified.com/cpq4/
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#1
Which of the following is NOT an assumption made by the kinetic molecular theory?
A. Gas particles collide with perfectly elastic collisions.
B. Gas particles are in constant, random straight-line motion.
C. Gas molecules exert no attractive force on each other.
D. The kinetic energy of the gas is directly proportional to its temperature.
E. The pressure exerted by the gas results from the gas colliding with the walls of the container.

#2
Which of the following gases would be expected to show the greatest deviation from ideal behavior?
A. H2
B. O2
C. H2S
D. H2O
E. CH4

#3
What volume of nitrogen gas would be needed to react completely with 90 liters of hydrogen gas at STP in the following reaction?
N2(g) + 3 H2(g) → 2 NH3(g)
A. 10 L
B. 20 L
C. 30 L
D. 60 L
E. 120 L

#4
When determining the molar volume of a gas by collecting the gas over water, which of the following laws must be considered to take into account the pressure exerted by water vapor in the collection bottle?
A. Boyle’s law
B. Charles’ law
C. Dalton’s law
D. Henry’s law
E. Pascal’s law

#5
A weather balloon has a volume of 20.0 L at 1.0 atm on the ground. What will be its volume at a pressure of 0.50 atm, assuming constant temperature?
A. 1.25 L
B. 2.5 L
C. 5.0 L
D. 20.0 L
E. 40.0 L

#6
500 mL of nitrogen at 28˚C is cooled to -10˚C at the same pressure. The new volume becomes
A. 179 mL
B. 437 mL
C. 572 mL
D. 772 mL
E. 1400 mL

#7
A bubble of air is underwater at 15˚C and 1.5 bar. If the bubble rises to the surface at 25˚C and 1.0 bar, what will happen to the volume of the bubble?
A. Decrease by a factor of 0.70
B. Decrease by a factor of 1.5
C. Increase by a factor of 1.1
D. Increase by a factor of 1.6
E. Increase by a factor of 2.5

#8
Under what conditions will a pure sample of an ideal gas not only exhibit a pressure of 1 atm but also a concentration of 1 mol/L? (R = 0.082 Latm/molK)
A. At STP
B. When T = 12 K
C. When V = 22.4 L
D. When n = 0.5 mol
E. Impossible under any conditions

#9
A gas sample with a density of 1.6 g/L exerts a pressure of 1.0 atm at 300 K. Which of the following best describes the molar mass of the gas?
A. 1.6 x 300
B. 1.6 / 300
C. 300 / 1.6
D. 1.6 x 0.082 x 300
E. Insufficient information

#10
A sample of butane was completely combusted at STP. How many moles of butane were burned if 44.8 L of CO2 were produced as a result?
A. 0.5 mol
B. 1.0 mol
C. 1.5 mol
D. 2.0 mol
E. 2.5 mol
----------------------------END OF PRACTICE QUESTIONS -------------------------------------

🕑 Here's when you'll find:
0:00 1 Kinetic molecular theory of gas
0:30 2 Real and ideal gas
1:11 3 Law of combining volumes
2:02 4 Dalton's law
2:32 5 Boyle's law
2:57 6 Charles' law
3:42 7 Combined gas law problem
4:44 8 Ideal gas law problem
5:38 9 Gas density and ideal gas law
6:33 10 Molar volume calculations

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