Kinetic Theory Flashcards
All 6 cards in this deck
What causes the pressure of a gas on the walls of its container?
Gas particles colliding with the walls; each collision exerts a force on the wall.
How do the particles of a gas move, according to kinetic theory?
Randomly, in all directions, at high speeds and with a range of speeds.
In which direction does the force produced by the pressure of a gas act on a surface?
At right angles ( / perpendicular / normal) to the surface.
What happens to the pressure of a fixed mass of gas kept at constant volume when its temperature is increased?
The pressure increases — particles move faster, so they hit the walls more often and harder.
True or false? The pressure a gas exerts on its container is caused by the particles colliding with each other.
False. It is caused by particles colliding with the walls of the container.
True or false? Increasing the temperature of a gas increases the average kinetic energy of its particles.
True. Higher temperature means faster-moving particles.