chemistry / Physical Chemistry / free

Gas Laws

Change a container and watch a microscopic model become pressure.

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Particles collide with the container. Pressure is the macroscopic result of microscopic momentum transfers at the walls.

idealized particle modeln, R constant
temperature50 K
volume62%
relative pressure81

At 50 K and 62% of the reference volume, the ideal model reports a relative pressure of 81. Temperature changes collision energy; volume changes collision frequency.

A gas is represented here as moving particles. It is a useful model, not a literal picture of what a gas looks like; real gases add attractions, finite particle volume, and non-equilibrium effects.

04 / PRACTICE

Make the chemistry yours.

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Answer from the model, then use the explanation to connect the particle picture to the chemical rule.

CHECK 1 / 3

What microscopic event creates gas pressure?