Gas Variables

When the temperature is constant (k) inside a balloon, if you add pressure on it, the volume will .....

• Decrease

• Increase

• Not Change at all

• Particles will solidify

For example, if you increase the temperature of a gas inside a balloon, the balloon will....

[pressure is constant (k)]

• Expand (increase in volume)

• Deflate (decrease in volume)

Pick the best answer to explain all properties of gases....

• They're fluids 
  Can be compressed
  Little space between particles 
• They're solids 
  Can be compressed
  Lots of space between particles 
• They're fluids 
  Cannot be compressed
  Lots of space between particles 
• They're fluids 
  Can be compressed
  Lots of space between particles 

What 2 variables are used in a Hot Air Balloon?

[Hint: Space and Heat]

• Pressure and Volume

• Volume and Temperature

• Temperature and Pressure

• Pressure, Temperature and Volume

Why does a car get low tire pressure in the COLD...what two variables are to blame?

• Pressure and Temperature

• Temperature and Volume

• Volume and Pressure

• Temperature and Weight

How do you convert C to Kelvin (K)?

• C + 273

• C x 273

• C / 273

• C + 32 + 273

What three variables are in the Ideal Gas Law?

• Pressure, Temperature, Volume

• Pressure, Kelvin, # of moles

• # of moles, Temperature, Volume

• Volume, Heat, and Greenhouse Gases

A gas that has a pressure of 2 atm and a volume of 10 L.  What would be the new volume if the pressure was changed to 1 atm?

• P1/T1 = P2/T2
• P1V1 = P2V2
• V1/n1 = V2/n2
• PV = nRT

A sample of a gas has a volume of 852 mL at 298 K. What temperature is necessary for the gas to have a volume of 945 mL?

• Pt = P1 + P2 + P3 + ...
• P1V1 = P2V2
• V1/T1 = V2/T2
• P1V1/T1 = P2V2/T2

Determine the number of moles in a container of gas at STP with a volume of 99.2 L. 

• V1/n1 = V2/n2
• PV = nRT
• P1/T1 = P2/T2
• V1/T1 = V2/T2