Kinetic theory gas

• What is the kinetic theory of a gas?

  A model to understand the behavior of gas particles
• Why is the kinetic theory of gas considered only a theory?

  Because we cannot directly observe gas particles
• What do gas particles do according to the kinetic theory?

  They are in a constant state of random motion
• How do gas particles move within a gas?

  In random directions and at random speeds
• What causes gas particles to change direction?

  Collisions with the walls of a container and with each other
• What happens to gas particles during collisions?

  They do not lose kinetic energy
• Why do collisions with the walls of a container occur more frequently than collisions between particles?

  Because the particles are very small and spread out
• What remains constant during collisions between gas particles?

  The total kinetic energy of the system
• What effect does raising the temperature of a gas have on the average kinetic energy of its particles?

  It raises the average kinetic energy
• How does the average speed of gas particles change with temperature?

  It increases with higher temperature
• What is the relationship between temperature and kinetic energy in a gas system?

  • Temperature is a measure of the kinetic energy in the system
  • Higher temperature corresponds to higher average kinetic energy
  • Lower temperature corresponds to lower average kinetic energy
• What resources does Launchpad Learning offer for GCSE revision?

  • Interactive quizzes
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  • AI tutor support
  • Comprehensive coverage of the specification