Gas Postulates

Calculate the volume that a 0.323-mol sample of a gas will occupy at -8^oC and a pressure of 0.900 atm.

• 7.18 L 
• 7.81 L
• 4.63 L
• 4.36 L

How many grams of N₂O₅ gas  are in a sample that has a volume of 2.00 Liters at 298 K and 100. kPa of pressure.  

• 8.72 grams
• 0.0807 grams
• 12.3 grams
• 883 grams

Under which of the following conditions do REAL gases behave most like IDEAL gases?

• High pressure and high temperature
• High pressure and low temperature
• Low pressure and low temperature
• Low pressure and high temperature

Which of the following is NOT a part of Kinetic Molecular Theory?

• Gas particles have mass and occupy space (the individual particles have volume)
• Gas particles do not have mass and occupy space (the individual particles have volume
• Gas particles move in straight lines
• The more heat energy the gas particles have, the faster they move

Tags

NGSS.HS-PS3-4

Which of the following is not one of the postulates of the kinetic molecular theory for ideal gases?

• The particles attract and then repel each other.
• The collisions between particles are elastic
• The particles are in constant random motion.
• The particle size is very small compared to the space between the particles.

In the ideal gas law, what is the variable n measured in?

• atm
• torr
• moles
• L

In the ideal gas law, which variable represents the gas constant?

• n
• R
• T
• V