Consider the reaction: 2SO2(g) + O2(g) = 2S03(g) For this reaction, the value of Keg is 429 at 25 °C What is the equilibrium expression for this reaction? Kea = Based on the numerical value of Keg, Wwhich is favored once the equilibrium is reached? products (SO3) or reactants (SO2 and O2)? Explain your reasoning. If the equilibrium concentrations of [SO2] = 0.150 M and [O2] = 0.0751 M, what is equilibrium concentration of [SO3]?

Consider the reaction: 2SO2(g) + O2(g) = 2S03(g) For this reaction, the value of Keg is 429 at 25 °C What is the equilibrium expression for this reaction? Kea = Based on the numerical value of Keg, Wwhich is favored once the equilibrium is reached? products (SO3) or reactants (SO2 and O2)? Explain your reasoning. If the equilibrium concentrations of [SO2] = 0.150 M and [O2] = 0.0751 M, what is equilibrium concentration of [SO3]?

World of Chemistry, 3rd edition

3rd Edition

ISBN:9781133109655

Author:Steven S. Zumdahl, Susan L. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan L. Zumdahl, Donald J. DeCoste

Chapter17: Equilibrium

Section: Chapter Questions

Problem 17A

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. Many sugars undergo a process called mutarotation, in which the sugar molecules interconvert between two isomeric forms, finally reaching an equilibrium between them. This is true for the simple sugar glucose, C6H12O6, which exists in solution in isomeric forms called alpha-glucose and beta-glucose. If a solution of glucose at a certain temperature is analyzed, and it is found that the concentration of alpha-glucose is twice the concentration of beta-glucose, what is the value of K for the inter-conversion reaction?
. What does it mean to say that a state of chemical or physical equilibrium is dynamic?
In Section 13.1 of your text, it is mentioned that equilibrium is reached in a closed system. What is meant by the term closed system. and why is it necessary to have a closed system in order for a system to reach equilibrium? Explain why equilibrium is not reached in an open system.
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Consider the equation G = G + RT ln(Q). What is the value of G for a reaction at equilibrium? What does Q equal at equilibrium? At equilibrium, the previous equation reduces to G = RT ln(K). When G 0, what does it indicate about K? When G 0, what does it indicate about K? When t G = 0, what does it indicate about K? G predicts spontaneity for a reaction, whereas G predicts the equilibrium position. Explain what this statement means. Under what conditions can you use G to determine the spontaneity of a reaction?
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