7
QuizMultiple Choice

Gases — Quiz

Question 7 • Chemistry

Which statement describes a limitation of the kinetic-molecular theory for a gas?

Answer
A
The theory assumes that particles are in random and continuous motion.
B
The theory states that pressure increases with temperature.
C
The theory assumes that particles do not experience intermolecular forces.
D
The theory states that pressure is inversely proportional to volume.

Explanation

The kinetic-molecular theory models gas particles as having negligible intermolecular forces. That assumption is a limitation because real gas particles can attract or repel one another, especially at high pressure or low temperature. Random, continuous motion is a basic feature of the theory, while the pressure relationships in B and D follow from gas behavior under the stated conditions.

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