Our interactive Mathematica simulations can be viewed below using Opera and Mozilla Firefox browsers with the free Wolfram CDF plug-in. They can be downloaded and used offline with the Wolfram CDF plug-in. They are also available on the Wolfram Demonstrations Project website. Most thermodynamics and kinetics/reactor design simulations have an accompanying screencast showing how to use them. We currently have more than 115 simulations, and we are continuously improving and adding new simulations. Please contact us at email@example.com if you identify any problems with the simulations or if you have suggestions for simulations we might prepare.