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A reaction A(aq)+B(aq) = C(aq) has a standard free-energy change of –3.75 kJ/mol at 25 °C. What are the concentrations of A, B, and C at equilibrium if, at the beginning of the reaction, their concentrations are 0.30 M, 0.40 M, and 0 M, respectively? [A] = M [B] = M [C] = M How would your answers change if the reaction had a standard free-energy change of +3.75 kJ/mol? There would be less A and B but more C. There would be more A and B but less C. There would be no change to the answers. All concentrations would be higher. All concentrations would be lower.

A reaction A(aq)+B(aq) = C(aq) has a standard free-energy change of –3.75 kJ/mol at 25 °C. What are the concentrations of A, B, and C at equilibrium if, at the beginning of the reaction, their concentrations are 0.30 M, 0.40 M, and 0 M, respectively? [A] = M [B] = M [C] = M How would your answers change if the reaction had a standard free-energy change of +3.75 kJ/mol? There would be less A and B but more C. There would be more A and B but less C. There would be no change to the answers. All concentrations would be higher. All concentrations would be lower.

Chemistry by OpenStax (2015-05-04)
Chemistry by OpenStax (2015-05-04)
1st Edition
ISBN:9781938168390
Author:Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark Blaser
Publisher:Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark Blaser
Chapter16: Thermodynamics
Section: Chapter Questions
Problem 48E: At mom temperature, the equilibrium constant (Kw) for the self-ionization of water is 1.001014....
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A reaction A(aq)+B(aq) = C(aq) has a standard free-energy change of -3.75 kJ/mol at 25 °C. What are the concentrations of A, B, and C at equilibrium if, at the beginning of the reaction, their concentrations are 0.30 M, 0.40 M, and 0 M, respectively? [A] = M [B] = M [C] = M How would your answers change if the reaction had a standard free-energy change of +3.75 kJ/mol? There would be less A and B but more C. There would be more A and B but less C. There would be no change to the answers. All concentrations would be higher. All concentrations would be lower.
Transcribed Image Text:A reaction A(aq)+B(aq) = C(aq) has a standard free-energy change of -3.75 kJ/mol at 25 °C. What are the concentrations of A, B, and C at equilibrium if, at the beginning of the reaction, their concentrations are 0.30 M, 0.40 M, and 0 M, respectively? [A] = M [B] = M [C] = M How would your answers change if the reaction had a standard free-energy change of +3.75 kJ/mol? There would be less A and B but more C. There would be more A and B but less C. There would be no change to the answers. All concentrations would be higher. All concentrations would be lower.
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