For a thermodynamic system containing ‘x’ chemical species, the maximum number of phases that can co-exist at equilibrium is_________________? August 29, 2021March 11, 2019 by admin For a thermodynamic system containing ‘x’ chemical species, the maximum number of phases that can co-exist at equilibrium is_________________? A. x B. x + 1C. x + 2 D. x + 3