Particle motion in gases

你需要知道的

• Gas particles move quickly in random directions and fill their container.
• Gas pressure comes from particles colliding with the walls of the container.
• At constant temperature, squeezing a gas into a smaller volume raises its pressure, because particles hit the walls more often (pV stays constant).
• Heating a gas makes its particles move faster; temperature calculations use the kelvin scale (add 273 to the Celsius value).

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