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  • Properties of Gas Particles: Understanding Random Motion & Collisions
    Here's what's true of all particles in a gas enclosed within a container:

    * Constant Random Motion: Gas particles are in constant, random motion. They move in straight lines until they collide with each other or the walls of the container.

    * Negligible Intermolecular Forces: The attractive forces between gas particles are very weak compared to the kinetic energy of the particles. This is why gases can expand to fill any container.

    * Elastic Collisions: Collisions between gas particles and the container walls are perfectly elastic. This means that no kinetic energy is lost during the collision.

    * Average Kinetic Energy Proportional to Temperature: The average kinetic energy of the gas particles is directly proportional to the absolute temperature of the gas. This means hotter gases have faster-moving particles.

    * Occupy Entire Volume: The particles of a gas are spread far apart, and they move freely. This allows them to fill the entire volume of the container.

    Important Note: These are general characteristics of ideal gases. Real gases exhibit deviations from ideal behavior, especially at high pressures and low temperatures, where intermolecular forces become more significant.

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