Gas Laws Practice Questions

Which of the following is a postulate of the kinetic molecular theory? In other words, which of the following is true of the kinetic molecular theory?

• Gas particles are in constant, random motion.

• Gas particles attract each other strongly.

• Gas particles have significant volume.

• Gas particles lose energy during collisions.

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DOK Level 1: Recall

According to the kinetic molecular theory, what happens to the pressure of a gas if the temperature is increased while the volume remains constant?

• The pressure decreases.

• The pressure remains the same.

• The pressure increases.

• The pressure becomes zero.

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DOK Level 1: Recall

If the volume of a gas is doubled while the temperature remains constant, what happens to the pressure of the gas?

• The pressure is halved.

• The pressure doubles.

• The pressure remains the same.

• The pressure quadruples.

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DOK Level 2: Skill/Concept

Calculate the pressure of a gas if the volume is 2 L, the number of moles is 1 mol, the temperature is 300 K, and the gas constant R is 0.0821 L·atm/(K·mol).

• 12.315 atm

• 24.63 atm

• 1.23 atm

• 3.69 atm

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DOK Level 2: Skill/Concept

Which of the following describes the relationship between temperature and volume for a gas at constant pressure?

• Boyle's Law

• Charles's Law

• Avogadro's Law

• Dalton's Law

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DOK Level 1: Recall

What is the effect of increasing temperature on the kinetic energy of gas particles?

• Kinetic energy decreases.

• Kinetic energy remains the same.

• Kinetic energy increases.

• Kinetic energy becomes zero.

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DOK Level 1: Recall

Which of the following statements is true according to the kinetic molecular theory?

• Gas particles move in a straight line until they collide with another particle or the walls of the container.

• Gas particles are stationary.

• Gas particles have a fixed position.

• Gas particles move in a circular path.

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DOK Level 1: Recall

If the number of moles of a gas is increased while keeping the volume and temperature constant, what happens to the pressure?

• The pressure decreases.

• The pressure remains the same.

• The pressure increases.

• The pressure becomes zero.

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DOK Level 2: Skill/Concept

Which of the following is NOT a postulate of the kinetic molecular theory?

• Gas particles are in constant, random motion.

• Gas particles have negligible volume.

• Gas particles exert attractive forces on each other.

• Gas particles undergo elastic collisions.

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DOK Level 1: Recall

Using the Ideal Gas Law, calculate the volume of a gas if the pressure is 1 atm, the number of moles is 2 mol, the temperature is 273 K, and the gas constant R is 0.0821 L·atm/(K·mol).

• 22.4 L

• 44.8 L

• 11.2 L

• 33.6 L

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DOK Level 2: Skill/Concept