The minerals hematite (Fe2 O3) and magnetite (Fe3 O4) exist in equilibrium with atmospheric oxygen: 4 Fe3 O4(s) O2(g) ⇌6 Fe2 O3(s) Kp=2.5 ×10^87 at 298 K (a) Determine PO2 at equilibrium. (b) Given that PO2 in air is 0.21 atm, in which direction will the reaction proceed to reach equilibrium? (c) Calculate Kc at 298 K | Numerade
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SOLVED: Magnetite (Fe3 O4) is magnetic, whereas iron(II) oxide is not. a. Write and balance the chemical equation for the formation of magnetite from iron(II) oxide and oxygen. b. Given that 318 kJ of heat is released for each mole of Fe3 O4 formed, what is the enthalpy change of the balanced reaction of formation of Fe3 O4 from iron(II) oxide and oxygen? | Numerade
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