Gas Laws

Which of these is a unit of temp? PICK Three

• Kelvin (K)

• cm3

• F

• atm

• Celcius (C)

Tags

NGSS.HS-PS3-4

A gas is heated from 263K to 298K. The volume is increased from 24.0L to 35.0L. If the original pressure was 1.00 atm, what is the new pressure?

• 0.777 atm

• 1.65 atm

• 1.28 atm

• 0.61 atm

Which container will have a lower pressure? (Both containers have the same number of gas particles and are at the same temperature)

• left

• right

• they both have the same pressure

• I don't know

Gas Laws involve what three terms?

• Solid Liquid Gas 
• Speed Velocity Acceleration 
• Elements Compounds Mixtures 
• Pressure Temperature Volume 

Three gases, Ar, N₂ and H₂ are mixed in a sealed container. Ar has a pressure of 255 torr, N₂ has a pressure of 228torr and H₂ has pressure of 752torr. What is the total pressure in the container?

• 483torr
• 270torr
• 1235torr

Tags

NGSS.HS-PS2-1

Which of the following is a TRUE statement based on the Kinetic Molecular Theory?

• Gases do not move in straight line
• Most of the volume of gas is empty space
• Gas particles are not in constant random motion
• Gas particles attract each other

Tags

NGSS.HS-PS3-2

NGSS.HS-PS3-4

A balloon will pop in the atmosphere because..

• Pressure goes down volume goes up
• Pressure goes up volume goes down
• temperature goes down volume goes up
• volume goes down temperature goes down

How many moles of oxygen must be placed in a 3.00 liter container in order to exert a pressure of 2.00 atmospheres at 25.0 °C?

• 146.8 moles

• 0.245 moles

• 21778 moles

• 4.08 moles

This graph is an example of two variables that are:

• directly proportional
• inversely proportional
• Straight line
• No relation

When 0.250 moles of a gas is placed in a container at 25.0 °C, it exerts a pressure of 700.0 mm Hg. What is the volume of the container?

• 0.557 Liters

• 6.64 Liters

• 8.74 Liters

• 0.0087 Liters