Question

Consider the following reaction for Questions 1.3 and answer the questions based upon this GU u IIULS reaction: CÓ (g) + 3 H (g) + CH4 (g) + H2O (G) 1. At 25°C, Keq=4.0. What must be the Co] at equilibrium If the equilibrium concentrations of [H.]= 2.0M. (CH) = 5.0M, and (HO) = 3.OM? Answer: 0.469 M The ICE table is a way to keep track of what is happening in the reaction vessel. The initial concentrations if given are the species (either reactants, products or both) that are put in to begin the reaction. The initial concentrations will change based upon the stoichiometry of the reaction. If we do not know the exact amount of change, we can assume a general amount ofx. If the reactants are moving to make the products, we would say the reaction is going in the forward direction and the amount of change for the reactants would be a decrease based upon the stoichiometry. For example, in a reaction in which 3 A 2B, then the amount of A would decrease by 3x (-3x) and the amount of B would increase by 2x (2x). We can then say that the initial concentration plus the change in concentration will equal the final or equilibrium concentration 2. 4.0 moles of CO and 2.0 moles of H, were mixed in a 1.0L container, and kept at constant temperature until equilibrium was reached. At equilibrium, It was found that 3.4 moles of CO were still in the container. Complete the ICE table below Substance CO (9) + co tal + H 3H, (g) • C CH, (9) + H2O(g) Initially (mol/L) Change @ Equilibrium (mol/L) Answer: x = 0.6M; [CO] = 3.4 M: [H.]-0.2M, [CH] = 0.6M, and [H0] = 0.6M 3. In another experiment, 2.0 M. of CO, 0.5 M. of H, 1.7 M of CH, and 2.5 M. of H.O were mixed and equilibrated at constant temperature in a container. At equilibrium, the concentration of CO is 2.8 M. a. Complete an ICE table with the information above. b. Solve for the equilibrium concentrations of each species. Answer: [CO] = 2.8 M: [H.]= 3.2M, [CH] = 0.9M, and [H0] - 1.7M

Answer 1

Equilibrium constant for a equilibrium reaction is given by following expression

For a eguillibriom heachion Geneial Rais cC ol D a A bB equillibrium Constaul keg Proclucl Reactant LA] CB6 tuhu CA1, L6J, Cc] cnd L0] asi eguillibrium Loncentrations of A,B,c d D uspetivaly Siwilenly For cog+3H,)F(40g) Equillibriuun Coteuf ke CCH41 CH207 Key Cco] [H13 4.0 SiO x 3.0 [Co] C2.013 Cco] = 0.469M 32 4X 8 co at eguillibrium Henee onentration is0,469 M