CHM 5 Chapter 9 Quiz

A sample of a gas has a volume of 852 mL at 298 K. What temperature is necessary for the gas to have a volume of 945 mL?

• 157.5⁰C

• 57.5 K

• 330.5 K

• 330.5⁰C

A scientist needs to store 28.0 moles of xenon gas at STP in the lab. What size gas tank will he need?

• 628 L

• 473 L

• 219 L

• 376 L

What is the pressure of a car tire that had an initial pressure of 1.8 atm but was heated from 38°C to 123°C? Assume volume remains constant

• 0.9 atm

• 2.3 atm

• 1.6 atm

• 3.4 atm

What is 50 C in Kelvin?

• 223
• 323
• 100
• 50

What will happen to the volume of a gas under constant temperature if the pressure increases?

• Increase
• Decrease
• Nothing
• Explosion!

A mixture of hydrogen, nitrogen, and water vapor has a total pressure of 864 mmHg. The partial pressure of hydrogen is 220 mmHg and that of nitrogen is 410 mmHg. What is the partial pressure of water vapor?

• 234 mmHg
• 1.37 mmHg
• 2.64 mmHg
• 1, 494 mmHg

At what temperature do nitrogen molecules move fastest?

• 350 K
• 300 K
• 250 K
• 200 K

Tags

NGSS.MS-PS1-4

What line segment represents only the solid state?

• A-B
• B-C
• C-D
• D-E

Tags

NGSS.MS-PS1-4

What state of matter is segment 5?

• Solid
• Liquid
• Gas
• Plasma

Tags

NGSS.MS-PS1-4

A substance's heating curve is shown in the graph.  What is its boiling point?

• 100 C
• 60 C
• 80 C
• 20 C

Tags

NGSS.HS-PS3-2

NGSS.HS-PS3-4