Help! - Chemical reaction in a litlle close reacto

Tino

Hi, I have a little closed reactor (no inlet no outlet) when there are the seguent reactions: 1) SO2 + 0.5O2 --> SO3 2) SO3 + H20(v) --> H2SO4(v) (v = vapour) I must study the final concentration of SO2 after 10 seconds (transient analysis) I have only walls boundary How I must setup the chemico module and the rest of setup? Do You have some suggests about this problems? With I run solver the first tie, the programm showed me the error: ?FORTRAN Runtime error ? Attempt to read past end of file Thank you Tino