Gas Laws Final Quiz

A 5.0 L container holds 0.2 moles of an ideal gas at a temperature of 300 K. What is the pressure of the gas in atmospheres? (Use R=0.0821 atm/mol·K).

• 0.99 atm

• 0.25 atm
• 0.75 atm
• 1.30 atm

A gas occupies 6.0 L at a pressure of 2.0 atm. If the pressure is increased to 4.0 atm, what is the new volume of the gas? (Assume temperature remains constant.)

• 2.0 L
• 4.0 L
• 5.0 L
• 3.0 L

A balloon has a volume of 500 mL at 27°C. If the temperature increases to 127°C, what will be the new volume? (Assume pressure remains constant.)

• 400 mL
• 666.67 mL
• 800 mL
• 550 mL

A gas has a pressure of 3.0 atm at 25°C. What will its pressure be if the temperature rises to 100°C, assuming volume remains constant?

• 2.5 atm
• 4.0 atm
• 5.5 atm
• 3.75 atm

A gas at 2.0 atm pressure, 3.0 L volume, and 300 K temperature undergoes a change to a pressure of 4.0 atm and a temperature of 400 K. What is the new volume?

• 3.5 L
• 5.0 L
• 2.0 L
• 1.5 L