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(a) The feed gas to a methanol synthesis reactor is composed of 65 mol% H2, 20 mol% CO, 12 mol% CO2 and 3 mol% N2. The system comes to equilibrium at 550 K and 100 bar with respect to the following reactions: 2H2(g) + CO(g) CH3OH (g) Using the thermochemical data in table 1 determine equilibrium constants for the reactions and derive the equations that would be solved simultaneously for the extents of the reactions (do not solve these equations) (18 marks) Explain what activity coefficients are and how they are used to correct for solution non-ideality. (7 marks) Table 1-Thermochemical properties for methanol synthesis reaction Species CO H2 CH3OH CO2 H20 ,298 s,298 -110.53 -137.16 200.94 393.51 -241.835 -162.24 -394.38 -228.614
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