Did either student perform the calculation correctly? If not, what did they do wrong? If neither student performed the calculation correctly, what is the correct set-up and value for the entropy of the system?
Did either student perform the calculation correctly? If not, what did they do wrong? If neither student performed the calculation correctly, what is the correct set-up and value for the entropy of the system?
Chemistry & Chemical Reactivity
10th Edition
ISBN:9781337399074
Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Publisher:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Chapter18: Principles Of Chemical Reactivity: Entropy And Free Energy
Section: Chapter Questions
Problem 1PS: Solid NH4NO3 is placed in a beaker containing water at 25 C. When the solid has completely...
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1) The entropy values for the reaction below are given in the table.
2 PCl3(g) + O2(g) → 2POCl3(g)
Student A calculated the ΔS for the reaction as follows:
ΔS°reaction = [(325.45 J/mol∙K)]− [(311.78 J/mol∙K)+( 205.14 J/mol∙K)]
Student B calculated the ΔS for the reaction as follows:
ΔS°reaction = [(2 moles)(311.78 J/mol∙K)+(1 mole)(205.14 J/mol∙K)] − [(2 moles)(325.45 J/mol∙K)]
Did either student perform the calculation correctly? If not, what did they do wrong?
If neither student performed the calculation correctly, what is the correct set-up and value for the entropy of the
system?
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