How is gas pressure caused?
Gas pressure is caused by gas particles constantly colliding with surfaces like container walls.
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How does increasing the number of collisions affect gas pressure?
More collisions of gas particles with surfaces lead to greater pressure.
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What are the two ways that increasing temperature increases pressure?
1. Particles hit the walls harder. 2. Particles collide with the walls more often.
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Explain how decreasing volume affects gas pressure.
When the volume decreases, particles are squashed together into less space.
This increases pressure because more particles collide with the walls.
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What is diffusion?
Diffusion is the spreading out of particles from an area of high concentration to an area of low concentration until evenly distributed.
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Why does diffusion take place slowly?
Diffusion takes place slowly because particles bump into air particles, changing their direction.
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