Unit 8: Gas Laws Review

What is the correct value for R?

• 8.26
• .08206
• .835
• 82.62

Choose the correct equation for this problem:
If I have 5.6 liters of gas in a piston at a pressure of 1.5 atm and compress the gas until its volume is 4.8 L, what will the new pressure inside the piston be? 

• P1V1=P2V2
• PV=nRT
• V1T1=V2T2
• V1T2=V2T1

If the pressure exerted by a gas at 25 degrees C in a volume of 0.044 L is 3.81 atm, how many moles of gas are present?

• .002766 mole
• .0069 mol
• 2.766 mol
• 9.887 mol

What is 298 K in degrees Celsius?

• 298 degrees C

• 25 degrees C

• 571 degrees C

• 0 degrees C

Calculate the volume that a 0.323-mol sample of a gas will occupy at 265 K and a pressure of 0.900 atm.

• 7.18 L 
• 7.81 L
• 4.63 L
• 4.36 L

Determine the Kelvin temperature required for 0.0470 mol of gas to fill a balloon to 1.20 L under .998 atm pressure. 

• 0 K 
• 107 K 
• 207 K 
• 307 K 

If I have 5.6 liters of gas in a piston at a pressure of 1.5 atm and compress the gas until its volume is 4.8 L, what will the new pressure inside the piston be?

• 1.8 atm

• 3.27 atm

• 1.8 L

• 3.27 atm

A sample of nitrogen occupies a volume of 250 mL at 25^oC. What volume will it occupy at 95^oC?

• 308.70 mL

• 456.1 mL

• 308.70^oC

• 456.1^oC

Tags

NGSS.HS-PS3-4

As temperature increases, volume increases. Describe the relationship:

• Direct Relationship

• Inverse Relationship

• No Relationship

As pressure increases, volume decreases. Describe the relationship:

• Direct Relationship

• Inverse Relationship

• No Relationship