Week 11 States of Matter

A student measures the pressure and volume of an empty water bottle to be 1.4 atm and initial volume is 2.3 L. She then decreases the pressure to 0.65 atm. What formula to use to get the volume final?

• PV=nRT

• P₁V₁=P₂V₂

• V₁/T₁= V₂/T₂

• P_T=P_A + P_B

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

Three gases are mixed together in a container with a total pressure of 4.8 atm. If two of the gases have pressures of 1.2 atm and 1.5 atm, the pressure of the third gas is 2.1 atm. What law that we apply to solve this question?

• Ideal Gas law

• Boyle's law

• Dalton's Law

• Charles's Law

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

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

What about gases can be measured?

• Pressure and Volume
• Temperature, Volume, and Pressure
• Volume and Temperature
• Pressure, Temperature, Volume, and Moles

Charles' Law States...

• As Pressure goes up volume goes down
• As Pressure goes up temperature goes up
• As Volume goes up temperature goes up 
• As Pressure goes down volume goes down 

An ideal gas is an imaginary gas whose particles are infinitely small and interact with each other

• True

• False

The conditions for a gas to behave ideally are high temperature and low pressure

• False

• True

There are ideal gases in nature

• True

• False