Hot and Cold Ideal Gases Documents This material has 2
associated documents. Select a document title to view a
document's information. The EJS Hot and Cold Ideal Gases model
simulates the mixing of hot and cold two-dimensional ideal gases
in a square box. This simulation can be used as part of the
activity described in "The Statistical Interpretation of
Entropy: An Activity" by Todd Timberlake, to be published in The
Physics Teacher. In the model, one gas is initially confined to
the left side of the box while the other gas is confined to the
right side. An animation window shows the motion of the
particles in the box, while an optional graph window plots the
temperature of each side of the box, which is determined by
measuring the average KE of the particles on each side. The
initial number of particles and temperature on each side of the
square can be changed and a button allows the user to reverse
the particle velocities at any time. The user can modify this
simulation if EJS is installed locally by right-