Q.31. To prepare sulfur from hydrogen sulfide extracted from the natural gas, the hydrogen sulfide gas with sulfur dioxide gaseous: we thus obtain liquid sulfur and water steam. 1) Write the equation of this reaction and calculate, using the data, its standard enthalpy at 298K. 2) Explain why the standard enthalpy of formation of liquid sulfur isn't zero? (Explain in one sentence only). Given: Standard molar enthalpies of formation at 298.15K Substance and State AH" (kJ/mol) SO, (g) -298.8 S(1) +11.8 S(s) H,S(g) -20.6 H,O(g) -241.8 H,O(1) -286
Q.31. To prepare sulfur from hydrogen sulfide extracted from the natural gas, the hydrogen sulfide gas with sulfur dioxide gaseous: we thus obtain liquid sulfur and water steam. 1) Write the equation of this reaction and calculate, using the data, its standard enthalpy at 298K. 2) Explain why the standard enthalpy of formation of liquid sulfur isn't zero? (Explain in one sentence only). Given: Standard molar enthalpies of formation at 298.15K Substance and State AH" (kJ/mol) SO, (g) -298.8 S(1) +11.8 S(s) H,S(g) -20.6 H,O(g) -241.8 H,O(1) -286
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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Transcribed Image Text:Q.31. To prepare sulfur from hydrogen sulfide extracted from
the natural gas, the hydrogen sulfide gas with sulfur dioxide
gaseous: we thus obtain liquid sulfur and water steam.
1) Write the equation of this reaction and calculate, using the
data, its standard enthalpy at 298K.
2) Explain why the standard enthalpy of formation of liquid
sulfur isn't zero? (Explain in one sentence only).
Given:
Standard molar enthalpies of formation at 298.15K
Substance and State AH" (kJ/mol)
SO, (g)
-298.8
S(1)
S(s)
+11.8
H,S(g)
-20.6
H,O(g)
-241.8
H,O(1)
-286
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