Which of the following statements is false ? A for one mole of any gas behaving

Question

Which of the following statements is false ?

A for one mole of any gas behaving ideally, the ratio PV/RT = 1.0 B the van der Waals equation adjusts the volume down to account for interparticular repulsion between gas particles at very high pressures and/or very low temperatures C increasing the pressure of an ideal gas decreases its average kinetic energy and collision frequency D the van der Waals equation adjusts the pressure up to account for interparticular attraction between gas particles at high pressures and/or low temperatures E the average kinetic energy of any sample of gas is the same at the same temperature

Explanation / Answer

Option C is false,

The pressure is directly proportional to the frequency of the collisons between the molecules. ie., as pressure increases the collision frequency increases.

Secondly the kinetic energy is dependent only on temperature. So it should remain constant independent of whether you increase or decrease the pressure.

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