Question

он HO +2 H2O Reaction 1 он HO Dioxane 2 Ethylene glycol 0 Species mol 0.166 0.120 0.188 Ethylene glycol 195 293 dioxane water R = 0.0083 14 kJ.mol-1:K-1 1. (Principles of Equilibrium - 16 points) Consider Reaction 1, shown above, carried out in the solvent DMSO (note - this reaction is not occurring in water, in this reaction water is a solute in this chemical reaction). Utilize the standard state thermodynamic data provided in the table above to answer the following questions; assume the activity coefficients are equal to 1.0 for all species in this problem: (8 points) Make the assumption that the thermodynamic data provided does pertain for these species in DMSO, and calculate and report the corresponding value for the equilibrium constant (K) for this reaction carried out at 250 K. Present your final answer with 2 significant digits a. b. (4 points) If you wanted to minimize the ratio of products to reactants for this system at equilibrium, would you maintain (i.e. control) the temperature of the system at a T> 250K or a T < 250K? Provide a justification for your answe studyGuide Exam2_F2018 (1).pdf symbols (4 points) Assume Reaction 1 is conducted where the initial molarities of all three species are 1.0 M and then allowed to reach equilibrium. The reaction vessel maintains the temperature at exactly 350 Kelvin. From the thermodynamic data provided, would heat be released to the surroundings, would heat be absorbed from thoe surroundings, or neither during the process of the system establishing equilibrium? Provide a justification for your answer using no more than 5 words or symbols c.

Answer 1