(a) The combustion of Pentane (C,H) produces Carbon dioxide (Co,) and water vapor (H,0). The property data are given in Teble Q3 and the chemical reaction is given below Cllu@)+0, () Co,() + H,0lg) Table Q3 Substance AH7 (KJ/mol) S(J/mol K) CH2) 146.44 348.41 CO-(9) -393.50 213.70 H,0(g) -241.82 188.72 0, (9) 205.00 () Apply the concepts of thermodynamics and find whether the reaction is spontaneous at 298 K. (ii) Calculate the cross over temperature.
(a) The combustion of Pentane (C,H) produces Carbon dioxide (Co,) and water vapor (H,0). The property data are given in Teble Q3 and the chemical reaction is given below Cllu@)+0, () Co,() + H,0lg) Table Q3 Substance AH7 (KJ/mol) S(J/mol K) CH2) 146.44 348.41 CO-(9) -393.50 213.70 H,0(g) -241.82 188.72 0, (9) 205.00 () Apply the concepts of thermodynamics and find whether the reaction is spontaneous at 298 K. (ii) Calculate the cross over temperature.
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:(a) The combustion of Pentane (C,H) produces Carbon dioxide (CO,) and water vapor
(H,0). The property data are given in Table 03 and the chemical reaction is given below.
CgH2(@) +0, (9) → CO;(g) + H,0lg)
Table Q3
Substance
AH (KJ/mol)
S (J/mol K)
CyH12 (9)
-146.44
348.41
CO2(9)
-393.50
213.70
H20(g)
-241.82
188.72
02 (g)
205.00
(i) Apply the concepts of thermodynamics and find whether the reaction is spontaneous at
298 K.
(ii) Calculate the cross over temperature.
(b) In an industrial furnace, the exhaust gases composition is: 12.0 mol of Sulfur trioxide
(SO3), 4.0 moles of unconverted Oxygen (O2) and 30 mol of Nitrogen (N2) at 1.0 atm
and 390 K. The equilibrium reaction is given below. Calculate the partial pressure of
Sulfur dioxide (SO2).
so, (g) 2 50;(g) + 02(g)
Ke = 4.9 x 10-2
Given: Gas constant, R = 0.0821 L. atm /mol. K.
23
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