increase H2SO4= shift right decrease Fe= shift left increase catalyst= no change decrease pressure= shift right decrease Fe2(SO4)= shift right decrease temperature= shift right increase H2= shift left increase pressure= shift left Solution increase H2SO4= shift right decrease Fe= shift left increase catalyst= no change decrease pressure= shift right decrease Fe2(SO4)= shift right decrease temperature= shift right increase H2= shift left increase pressure= shift left.