The Combined Gas Law, Ideal Gas Law & Dalton's Gas Law

A weather balloon has a volume of 105 L at 98.3 kPa when the temperature is 318 K. What is the volume at 293 K and 106.4 kPa?

• 89.4 L

• 0.32 L

• 93.8 L

• 3.13 L

A gas is heated from 263K to 298K. The volume is increased from 24.0L to 35.0L. If the original pressure was 101.33 kPa, what is the new pressure?

• 78.7 kPa

• 167.2 kPa

• 129.7 kPa

• 61.8 kPa

If 3.0 L of helium at 293 K with a pressure of 200 kPa is allowed to expand to 4.4 L with the pressure staying constant. What is the new temperature?

• 702 K

• 430 K

• 157 K

• 0 K

What pressure, in atm, is exerted by 2.50 L of gas containing 1.35 mol at 320 K?
PV=nRT

• 14.19 atm
• 16.53 atm
• 18.42 atm
• 22.54 atm

Gases have...

• A definite shape and volume
• A definite shape but no definite volume
• No definite shape but a definite volume
• No definite shape or volume

Tags

NGSS.MS-PS1-4

Which law helps us find the moles of gas in a sample?

• Charles Law
• Boyle's Law
• Combined Gas Law
• Ideal Gas Law

A container is filled with H₂, and H₂O. Calculate the partial pressure of H₂ when the pressure of water is 17 torr. The total pressure of the gases is 750 torr.

• 767.5 torr

• 732 torr

• 42.86 torr

What is STP?

• 1 Degrees Celsius and 0 atm

• 0 Degrees Celsius and 1 atm

• 0 Kevin and 10 atm

• 273 Celsius and 273 atm

What volume does 13.6 g of O₂ gas at 37.0°C and 135 kPa occupy?
PV=nRT

• 6.22 L
• 8.11 L
• 10.54 L
• 12.73 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