Hi Ronald,
thank you for the rapid response. Here are two HDF5 files, Langmuir_1 simulated with a relatively low value of k_{kin} and Langmuir_2 with a higher value. Note that both simulations were performed by disabling the kinetics.
langmuir_1.h5 (4.1 MB)
langmuir_2.h5 (4.0 MB)