Chemical Equilibrium for Multiple Reactions: Example Problems
Try to solve these problems before watching the solutions in the screencasts.
Example Problem 1
Calculate the equilibrium composition at 750 K and 1 bar for the water-gas shift reaction for a feed of 2 mol/s CO and 2 mol/s H2O using both extent of reaction and Gibbs minimization. Use temperature-dependent heat capacities and assume the heats of formation are a function of temperature. (Spreadsheet: WGS Chemical Equilibrium by Gibbs Minimization)
Example Problem 2
Calculate the equilibrium composition at 950 K and 3.0 bar for a feed of 1.0 mol/s CH4 and 1.0 mol/s H2O using Gibbs minimization. Use temperature-dependent heat capacities and assume the heats of formation are a function of temperature. Assume that CO, CO2 and H2 can form. (Spreadsheet: Multiple Reactions Chemical Equilibrium by Gibbs Minimization)
Demonstrates how to use the spreadsheet to solve for chemical equilibrium using Gibbs minimization for two reactions.