The input for the thermochemical calculation in ChemApp is defined in an Excel worksheet where the output is also written. This allows you to combine thermochemical calculations with physical modelling, e.g. taking into account heat transfer or reaction kinetics. By introducing a step variable you can establish a firm link between both models, using iteratively results from one model as input for the other model. Please have a look at the application examples!
Figure 1. Chemsheet works as an add-in of general thermodynamics to Microsoft Excel.