Answered: Reaction Thermodynamics: Brucite and…

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

Problem 1.1P

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Reaction Thermodynamics: Brucite and quartz react to form talc and water as shown by the chemical equation below: 3Mg(OH)* + 4SiO* = Mg+Si, O-.(OH)* + 2H*O Use the tabular data to answer the following questions. (a) Compounds on which side of the above chemical equation are stable at the surface of the Earth? Why? (b) Which side is favored by increasing pressure? Why?

Phase
Formula
S°
V
(J/mol)
(J/K-mol)
(cc/mol)
water
H20
-285850
69.92
18.10
Talc
Mg:Si:O10(OH)2 -5900500
260.20
136.10
Brucite
Mg(OH)2
-926300
63.14
34.63
Quartz
SiO2
-910650
41.34
22.69
(note that 1 cc/mol) = 1J/MPa-mol
%3D

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