Chem gas practice

A container holds three gases: oxygen, carbon dioxide, and helium. The partial pressures of the three gases are 2.00 atm, 3.00 atm, and 4.00 atm, respectively. What is the total pressure inside the container?

• 2 atm
• 4 atm
• 3 atm
• 9 atm

• Helium
• Nitrogen 
• Oxygen
• All have the same number of molecules

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

• 550 kPa
• 900 kPa
• 200 kPa
• 350 kPa

If you increase the pressure of a constant volume of gas, what will happen to the temperature?

• Increase
• Decrease
• Stay the same
• It will Blow Up

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

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

• Increase
• Decrease
• Nothing
• Explosion!

What is 50 C in Kelvin?

• 223
• 323
• 100
• 50

Tags

NGSS.MS-PS1-4

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
• It would stay at 10L
• 1 L

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

• 372
• 273
• 237
• 732

Partial Pressure looks are the pressures of the individual gases as if they __________ and then adds them together.

• were in the container by themselves

• were at STP

• were compared to atomospheric pressure

• were in subtracting