Which of the following statements is TRUE?
A) At a given temperature, lighter gas particles travel more slowly than heavier gas particles.
B) The smaller a gas particle, the slower it will effuse.
C) The higher the temperature, the lower the average kinetic energy of the sample.
D) At low temperatures, intermolecular forces become important and the pressure of a gas will be lower than predicted by the ideal gas law.
E) None of the above statements are true.

Question

Quizplus · Accepted Answer

At low temperatures, the kinetic energy of gas particles decreases, causing intermolecular forces to become significant. As a result, the pressure of a gas will be lower than what is predicted by the ideal gas law. A is false as heavier particles travel slower than lighter particles at a given temperature. B is false as smaller gas particles effuse faster than larger ones. C is false as the higher the temperature, the higher the average kinetic energy of the sample.

Which of the Following Statements Is TRUE