This is a model showing how volume, temperature, and air pressure relate. (The mathematical relationships are completely inaccurate, though, it is just meant to show increase or decrease in pressure.) > Click and drag the temperature slider to adjust the temperature of the air inside the beaker. > Click and drag the lid to adjust the volume of the beaker, or drag it completely upwards to remove it. > When the lid is removed, click the rewind arrow to put the lid back and reset the simulation. > To keep the lid from moving when the pressure changes, click the lock icon on the left hand of the screen so it appears locked. To let the lid move again, click the lock so it appears unlocked. > To add more particles, click the + button under "Particles"
>Inspired by a school assignment. All art and coding by me. :) >If you find any glitches or have a suggestion, please let me know in the comments! What is air pressure? > Air pressure is the total force of all collisions of air particles on an object. Why is the temperature in degrees K? > Degrees K, Kelvin, is a unit of temperature that corresponds directly with the kinetic energy (speed) of the air particles. When the temperature is 0 K, the particles wouldn't be moving since they have no kinetic energy (speed). Why does the lid go down when the pressure gets low? > When the lid goes down in to the beaker, it is because the pressure inside the beaker is lower than the pressure outside the beaker. The standard air pressure in a room is usually around 101 kPa, so when the pressure in the beaker decreases to below 101 kPa, the lid is pushed downwards by the outside air, and the air inside the beaker is at too low of a pressure to be pushing the lid up.
