Gas Laws

Which of the following correctly predicts how the gas pressure inside a hairspray can would be affected if a hairspray can is heated?

• The pressure will increase

• The pressure will decrease

• The pressure will remain constant

• The pressure will equalize

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

• 372.00

• 273.15

• 237

• 732

Which of the following would increase the (gas) pressure of a system?

• Increase the temperature

• Pump in more gas

• Decrease the volume

• All of these

Pressure is

• defined as the mass that an object exerts when at rest.

• not a measurable in gases.

• defined as the number of moles of substance divided by the mass of the substance.

• created by the force of the gas particles impacting the walls of the container.

A student measures the pressure and volume of a balloon to be 1.4 atm and 2.3 L She then decreases the pressure to 0.65 atm while keeping the temperature constant. What is the new volume?

• 2.1 L

• 5.0 L

• 8.2 L

• 3.9 L

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

Tags

NGSS.HS-PS1-5

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

Determine the temperature required for 0.0470 mol of gas to occupy a volume of 1.20 L at a pressure of .998 atm.

• 0 K

• 107 K

• 207 K

• 307 K

What is the pressure exerted by 5.00 moles of nitrogen gas contained in a 30.0 liter container at 25.0 °C?

• 3670 atm

• 0.245 atm

• 4.08 atm

• 605 atm

Which container will have lower pressure?

• left
• right
• they both have the same pressure