Gas Laws 1

A sample of a gas in a rigid cylinder with a movable piston has a volume of 11.2 liters at STP. What is the volume of this gas at 202.6 kPa and 300. K?

• 5.10 L

• 6.15 L

• 22.4 L

• 24.6 L

A student inflates a balloon with helium then places it in the freezer. The student should expect

• the balloon's volume to increase

• the balloon's volume to decrease

• the balloon's moles to increase

• the balloon's moles to decrease

A student measures the pressure and volume of an empty water bottle to be 1.4 atm and 2.3 L. She then decreases the pressure to 0.65 atm. What is the new volume?

• 2.1 L

• 5.0 L

• 8.2 L

• 3.9 L

A gas that has a pressure of 2 atm and a volume of 10 L. What equation would be used to find the new volume if the pressure was changed to 1 atm?

• P1/T1 = P2/T2

• P1V1 = P2V2

• V1/n1 = V2/n2

• PV = nRT

A sample of gas with a volume of 30.0 mL at 25.0^oC is heated to 50.0^oC.  What is the new volume of the gas?

• P1V1 = P2V2
• P1/T1 + P2/T2
• PV = nRT
• V1/T1 = V2/T2

The gas in the container is at a pressure of 3.00 atm at 298 K. What equation could be used to calculate the pressure in the container at 325 K?

• P1/T1 = P2/T2

• P1V1 = P2V2

• V1/T1 = V2/T2

• PV = nRT

Boyle's law :  The pressure and volume of a gas show a _____ relationship. 

• No relationship 
• Direct 
• Inverse 
• Equal

In order to convert to Kelvin, you add ______ to the Celsius measurement.

• 372
• 273
• 237
• 732

What about gases can be measured?

• Pressure and Volume
• Temperature, Volume, and Pressure
• Volume and Temperature
• Pressure, Temperature, Volume, and Moles

What is 50 °C in Kelvin?

• 223
• 323
• 100
• 50