Gas Laws Test

A student inflates a balloon with helium then places it in the freezer. The student should expect

• the balloon's volume to increase

• the balloon's volume to decrease

• the balloon's moles to increase

• the balloon's moles to decrease

Tags

NGSS.HS-PS3-4

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?

• 0.9 atm

• 2.1 atm

• 1.6 atm

• 3.4 atm

If a hairspray can is heated, what can be expected of the pressure of the gas inside the can?

• The pressure will increase

• The pressure will decrease

• The pressure will remain constant

• The pressure will equalize

Tags

NGSS.HS-PS3-4

Calculate the volume that a 0.323-mol sample of a gas will occupy at 265 K and a pressure of 0.900 atm.

• 7.18 L 
• 7.81 L
• 4.63 L
• 4.36 L

Match the following units to their names.

• atm

• Pressure

• mol

• Moles

• K

• Temperature

• mmHg

• Volume

• L

• Pressure

Tags

NGSS.HS-PS1-5

Which of the following changes would cause a decrease in the Volume of a gas?

SELECT ALL THAT APPLY!!!

• Lowering the Temperature

• Increasing the Pressure

• Increasing the Temperature

• Lowering the Pressure

Gas particles are in constant motion. They travel in straight lines, and they constantly bounce off the walls of any container that holds them.

What does this constant bombardment of particles against the walls of the container create?

• Pressure

• Density

• Temperature

• Magnetism

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?

• 0.78 atm
• 1.65 atm
• 1.28 atm
• 0.61 atm

If Chlorine gas is at STP, what is the mass of the gas if the pressure is increased to 150 mmHg and a volume of 300 ml at a temperature of 30 C?