specify_species_in_mole_fractions# class ansys.fluent.core.generated.solver.settings_251.specify_species_in_mole_fractions(name=None, parent=None)# Bases: Boolean Set Specify Species in Mole Fractions. Included in: Parent Summary species_5 Allows to change species model variables or settings. species_6 Allows to change species model variables or settings. species_7 Allows to change species model variables or settings. species_9 Allows to change species model variables or settings.