Gas Laws

What is the volume of a balloon if it contains 3.2 moles of helium at a temperature of 20⁰C and 1.2 atm?

• 106.55 K

• 53.3 L

• 293 K

• 64.15 L

A gas is heated from 263K to 298K. The volume is increased from 24.0L to 35.0L. If the original pressure was 1.00 atm, what is the new pressure?

• 0.78 atm
• 1.65 atm
• 1.28 atm
• 0.61 atm

A gas occupies 4.98 L at 2.6 atm of pressure. What volume does it occupy at 1.8 atm pressure?

• 12.9 L
• 0.72 L
• 7.2 L
• 3.44 L

There are 40 liters of helium in a balloon at 100 K. If the temperature of the balloon is increased to 200 K, what will the new volume of the balloon be?

• 80 L

• 45 L

• 54 L

• 45.33 L

A gas container is initially at 47 mm Hg and 77 K (liquid nitrogen temperature.) What will the pressure be when the container warms up to room temperature of 298 K?

• 182 mmHg

• 245 mmHg

• 316 mmHg

• 419 mmHg

A tank of gas contains 50 kPa of helium, 50 kPa of argon, and 100 kPa of neon. What is the total pressure of the gas mixture?

• 100 kPa

• 50 kPa

• 200 L

• 200 kPa

What is 50 C in Kelvin?

• 223

• 323

• 100

• 50

If 200 mL of a gas at 27°C is cooled to -33°C at a constant pressure, the volume will be

• .25 L

• .204 L

• .16 L

• .196 L

You have a gas that has a pressure of 2 ATM and a volume of 10L.  What would be the new volume if the pressure was changed to 1 ATM?

• 5 L

• 20 L

• 1 L

• 10 L

Convert 2.3 atm to mmHg

• 2300 mmHg

• 1750 mmHg

• 2.3 mmHg

• 0.0030 mmHg