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5. Metallic mercury is obtained by heating the mineral cinnabar (HgS) in air: Hg(l) + SO2(g) Calculate the A;H° for the reaction using the following information. HgS(s) + O2(g) (i) AH° HgS(s) = -58.2 kJ mol A¡H° SO2(g) = -296.8 kJ mol %3D

5. Metallic mercury is obtained by heating the mineral cinnabar (HgS) in air: Hg(l) + SO2(g) Calculate the A;H° for the reaction using the following information. HgS(s) + O2(g) (i) AH° HgS(s) = -58.2 kJ mol A¡H° SO2(g) = -296.8 kJ mol %3D

Introduction to Chemical Engineering Thermodynamics
Introduction to Chemical Engineering Thermodynamics
8th Edition
ISBN:9781259696527
Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Publisher:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Chapter1: Introduction
Section: Chapter Questions
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5. Metallic mercury is obtained by heating the mineral cinnabar (HgS) in air: HgS(s) + O2(g). (i) A¡H°_HgS(s) = -58.2 kJ mol Hg(1) + SO2(g) Calculate the A;H° for the reaction using the following information. A¡H° SO2(g) -296.8 kJ mol-l %3D %3D The entropy change for this reaction A,S° = +36.7 J K-!. (ii) (iii) %3D Determine whether this reaction is spontaneous at 25 °C. Sketch a graph showing the relationship between A;G° and temperature for this reaction. (iv) Comment on the spontaneity of the reaction at low and high temperature
Transcribed Image Text:5. Metallic mercury is obtained by heating the mineral cinnabar (HgS) in air: HgS(s) + O2(g). (i) A¡H°_HgS(s) = -58.2 kJ mol Hg(1) + SO2(g) Calculate the A;H° for the reaction using the following information. A¡H° SO2(g) -296.8 kJ mol-l %3D %3D The entropy change for this reaction A,S° = +36.7 J K-!. (ii) (iii) %3D Determine whether this reaction is spontaneous at 25 °C. Sketch a graph showing the relationship between A;G° and temperature for this reaction. (iv) Comment on the spontaneity of the reaction at low and high temperature
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