unit 7 -- ideal gases

Multiple Choice

What is the difference between an Ideal gas and a Real gas?

• an ideal gas follows the gas laws only under real conditions

• an ideal gas follows the gas laws under all conditions

• a real gas follows the gas laws under all conditions

Multiple Choice

Which type of gases DO have volume?

• Ideal

• Real

Multiple Choice

Which characteristic of Real gases allows them to form liquids under extremely low temperatures?

• the high kinetic energy of gas particles

• the volume of the gas particles

• attractions between gas particles

Multiple Choice

Which variable in the Ideal gas equation represents the number of moles of the gas?

• P

• T

• R

• n

Multiple Choice

Which variable in the Ideal gas law equation represents the gas constant?

• R

• n

• T

• C

Multiple Choice

What is the value of the gas constant?

• 1 mole

• 22.4 L

• 8.31 (L kPa)/(K mol)

• 6.02 x 10²³

Multiple Choice

At 307 K, the pressure inside a nitrogen-filled tennis ball with a volume of 0.148 L is 212 kPa. How many moles of nitrogen gas are in the tennis ball?

• 7 moles

• 14 moles

• 0.0123 moles

• 123 moles