Match each state of matter or gaseous behavior with the corresponding kinetic molecular postulate that explains its microscopic thermodynamic properties.
- Solid phase mechanical rigidity and definite volumeIntermolecular cohesive forces strongly dominate particle thermal energy, restricting particle movement strictly to vibrational motion around fixed lattice coordinates.
- Liquid phase fluidity with incompressible volumeTranslational kinetic energy allows particles to slide past one another while short-range attractive forces maintain constant inter-particle separation.
- Real gas liquefaction under extreme conditionsIntermolecular attractive forces become non-negligible at low temperature and high pressure, causing particles to coalesce when kinetic energy drops.
- Ideal gas thermal energy distributionAverage translational kinetic energy of constituent particles is directly proportional to absolute temperature, assuming zero net attractive forces.
Answer
Solid phase rigidity pairs with strong cohesive forces restricting motion to fixed lattice vibrations; Liquid phase fluidity pairs with translational kinetic energy allowing particle sliding under cohesive contact; Real gas liquefaction pairs with non-negligible intermolecular attractions at low thermal energy and high density; Ideal gas energy distribution pairs with average kinetic energy being directly proportional to absolute temperature without attractive forces.
The Kinetic Molecular Theory correlates macroscopic bulk properties of matter (solids, liquids, gases, and real gas deviations) to microscopic balances between thermal kinetic energy and intermolecular forces. Solids are dominated by strong attractive forces restricting particles to fixed vibration points. Liquids possess comparable kinetic energy and cohesive forces allowing fluid translational motion while preserving volume. Real gases condense because intermolecular forces become significant when thermal motion slows at low temperatures and high pressures. Ideal gases assume zero intermolecular forces, where absolute temperature directly dictates average translational kinetic energy.
Step-by-Step Solution
Key Concept
Kinetic Molecular Theory Postulates across States of Matter