I tried to write the rate law as a script directly into the input file. I included the values of R, T, n, and KT directly into the script and assigned the values of k and Ea in the GUI. I also multiplied the rate equation by the surface area (which was assigned in the GUI) and (1 - Q/K). When I try to run the model, I get an error message indicating my rate law cannot be evaluated. The model is attached, and I would appreciate help. Thanks!
anorthite dissolution.rea