Injecting Water into Liquid Nitrogen Tanks
Download the CDF file to view the simulation using the free Wolfram CDF player.
https://sites.google.com/a/learncheme.com/learncheme/simulations/cdf-files/InjectingWaterIntoLiquidNitrogenTanks.cdf
In this Demonstration, hot and cold water are injected into insulated tanks containing liquid nitrogen. The volume of water injected has a large impact on the amount of liquid nitrogen evaporated. Adjust the sliders to change the volume and temperature of water in each syringe, then click the play button. After equilibrium is reached, select the reset button to run the simulation for different starting conditions.

The simulation may be paused at any time, and the animation speed may be increased or decreased using the up arrow and down arrow buttons. The simulation is at a much slower speed than the actual process in order to help visualize the process, and the volume of the ice cubes is exaggerated relative to the volume of the nitrogen gas.