Unformatted text preview: present in equilibrium. For an equilibrium mixture that consists of CO2, CO, O2, and O, for example, two KP relations are needed to determine the equilibrium composition since it involves four chemical species and two elements (Fig. 1614). The determination of the equilibrium composition of a reacting mixture in the presence of two simultaneous reactions is here with an example. Chapter 16
EXAMPLE 165 Equilibrium Composition for Simultaneous Reactions
Initial composition 1 kmol H2O 2 kmol O2 | 805 A mixture of 1 kmol of H2O and 2 kmol of O2 is heated to 4000 K at a pressure of 1 atm. Determine the equilibrium composition of this mixture, assuming that only H2O, OH, O2, and H2 are present (Fig. 1615). Equilibrium composition at 4000 K, 1 atm x H2O y H2 z O2 w OH Solution A gas mixture is heated to a specified temperature at a specified
pressure. The equilibrium composition is to be determined. Assumptions 1 The equilibrium composition consists of H2O, OH, O2, and H2. 2 The constituents of the mixture are ideal gases. Analysis The che...
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