medium · MCAT chem-phys
Real gases deviate from the behavior predicted by the Ideal Gas Law (PV = nRT) most significantly at high pressures and low temperatures.
Which of the following best explains why the observed pressure of a real gas is lower than that predicted by the Ideal Gas Law?
- Intermolecular attractive forces reduce the impact force of gas molecules against the container walls.
- Gas molecules undergo inelastic collisions with each other, gradually losing kinetic energy.
- The average kinetic energy of the gas molecules increases as the temperature of the gas falls.
- The finite volume occupied by the gas molecules increases the total space available for molecular movement.
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