Consider Two Flasks at 25 ^$\omicron$ C, One Contains an Ideal Gas and the Other Contains

question 20

Multiple Choice

Consider two flasks at 25 ^$\omicron$ C, one contains an ideal gas and the other contains the real gas SO₃. Which statement regarding these gases is true?

• A) After the temperature is increased about 100 K, the pressure of the ideal gas will be smaller than the pressure of SO₃ because the van der Waals coefficient a for SO₃ is large.
• B) As the temperature is decreased, the ideal gas will liquefy first because ideal gases have larger values of the van der Waals coefficient b.
• C) After the temperature has been lowered about 100 K, the pressure of the ideal gas will be smaller than the pressure of SO₃ because the van der Waals coefficient a for SO₃ is large.
• D) As the temperature approaches 0 K, the volume of the ideal gas will be larger than the volume of SO₃ because ideal gases lack intermolecular forces.
• E) As the temperature approaches 0 K, the volume of the ideal gas will be smaller than the volume of SO₃ because ideal gases have larger values of the van der Waals coefficient a.

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Definitions:

Chlorofluorocarbons

A group of man-made chemical compounds containing chlorine, fluorine, and carbon, historically used in refrigeration and aerosol propellants, but now known to deplete the ozone layer.

Flammable

Easily ignited and capable of burning rapidly; used to describe substances that pose a significant fire risk.

Nontoxic

Substances that do not pose a risk of harm or poison to humans, animals, or the environment.

Stable

A state of equilibrium or the absence of significant change, often describing systems that return to equilibrium after a disturbance.