Real vs ideal gas

Under which conditions of temperature and pressure does carbon dioxide behave most like an ideal gas?

• A) Low temperature and low pressure

• B) Low temperature and high pressure

• C) High temperature and low pressure

• D) High temperature and high pressure

Under which conditions of temperature and pressure does a sample of neon behave most like an ideal gas?

• A) 100K and 0.25 atm

• B) 100K and 25 atm

• C) 400K and 0.25 atm

• D) 400K and 25 atm

A real gas differs from an ideal gas because the molecules of a real gas have

• A) Some volume and no attraction for each other

• B) Some volume and some attraction for each other

• C) No volume and no attraction for each other

• D) No volume and come attraction for each other

One reason that a real gas deviates from an ideal gas is that the molecules of a real gas have

• A) a straight-line motion

• B) no net loss of energy on collision

• C) a negligible volume

• D) forces of attraction for each other

Which gas is least likely to obey the ideal gas laws at very high pressures and very low temperatures?

• He

• Ne

• Kr

• Xe