CHBE 211 - PHYSICAL CHEMISTRY SRING 2021 BUT 2 Iron(1) chloride (melting point 677") and potassium chloride (melting point 776"C) form the compounds KFeCl, and Kfecte at elevated temperatures. KFeCh melts congruently at 399 C and K FeCl melts incongruently at 380*C. Eutectics are formed with compositions x = 0.38 (melting point 351999 and x = 0.54 (melting point 393C), where x is the mole fraction of iron(1) chloride. The potassium chloride solubility curve intersects the KFeClacurve at x = 0.34 () Sketch the phase diagram. b) State the phases that are in equilibrium when a mixture of composition x=0.36 is cooled from 400C to 300C