Understanding Gas Laws

What is the Ideal Gas Law equation?

• P = nRT/V

• PV = nRT

• PV = RT

• PV = nR

State Boyle's Law and its mathematical expression.

• P1V1 = P2V2

• PV = nRT

• P1 + V1 = P2 + V2

• P1V2 = P2V1

How does Charles's Law relate temperature and volume?

• Charles's Law indicates that volume remains constant regardless of temperature changes.

• Charles's Law relates temperature and volume by stating that they are directly proportional at constant pressure.

• Charles's Law states that temperature and volume are inversely proportional.

• Charles's Law applies only to gases at high pressure.

What is Avogadro's Law and its significance?

• Avogadro's Law states that the volume of a gas is directly proportional to its temperature.

• Avogadro's Law states that equal volumes of gases at the same temperature and pressure contain an equal number of molecules.

• Avogadro's Law applies only to liquids and solids, not gases.

• Avogadro's Law indicates that the mass of a gas is constant regardless of temperature and pressure.

If the pressure of a gas is doubled while keeping the temperature constant, what happens to its volume according to Boyle's Law?

• The volume remains the same.

• The volume is doubled.

• The volume increases by half.

• The volume is halved.

How does the Ideal Gas Law apply to real gases under high pressure?

• Intermolecular forces become negligible at high pressures for real gases.

• High pressure causes real gases to become more ideal due to reduced volume.

• Real gases behave exactly like ideal gases at high pressures.

• Real gases deviate from the Ideal Gas Law at high pressures due to intermolecular forces and particle volume.

What is the relationship between volume and temperature in Charles's Law?

• The volume of a gas is directly proportional to the pressure at constant temperature.

• The volume of a gas remains constant regardless of temperature changes.

• The volume of a gas increases with an increase in temperature, at constant pressure.

• The volume of a gas decreases with an increase in temperature, at constant pressure.

Calculate the volume of 2 moles of an ideal gas at STP using the Ideal Gas Law.

• 44.8 L

• 22.4 L

• 33.6 L

• 56.8 L

Explain how Avogadro's Law can be used to determine the number of moles in a gas sample.

• Number of moles = Pressure of gas sample (atm) / 22.4 atm/mol

• Number of moles = Temperature of gas sample (K) / 22.4 K/mol

• Number of moles = Volume of gas sample (L) / 22.4 L/mol

• Number of moles = Mass of gas sample (g) / 22.4 g/mol

What assumptions are made in the Ideal Gas Law regarding gas behavior?

• Gas particles collide inelastically and lose energy.

• Gas particles have significant volume and attract each other.

• Gas particles are stationary and do not move.

• Gas particles have no volume, no intermolecular forces, and undergo elastic collisions.