Assuming that the constant pressure heat capacities are independent of temperature, use the data below to calculate the equilibrium constant for the reaction at 225, 300 and 450 oC, at standard pressure. Comment on your results.(i) Standard enthalpy change for the reaction(∆H°R)= (-91)kJ/mol(ii) Standard entropy change for the reaction(∆S°R)= (-219.3 )J/(mol K)(iii) Standard Gibbs energy change for the reaction(∆G°)= (-25.649) kJ/mol(iv) Equilibrium constant (k)=1.0104 at 298K (v) The change in the heat capacity at constant pressure for the chemical reactions, under standard conditions. = 42.8 J/k mol Chemical thermodynamics in the manufacture of methanolMethanol (CH3OH) is used to manufacture a large number of importantchemicals, such as formaldehyde (HCHO) which is employed in themanufacture of a variety of polymers;((CH3),OCH3), which has been used as a lead-free anti-knocking agent inpetrol; acetic acid (CH;CO2H), etc. Annual production of methanol has beenincreasing: from 3.3 MTe/yr in 1982,' to 20 MTe/yr in 1991.2methyl-tertiary-butyletherMethanol is manufactured using synthesis gas (a mixture of carbon monoxide,co, and hydrogen, H2) through the following chemical equilibrium.co(x)+2H,(x)=CH,OH(8)Thermodynamic data (standard enthalpies of formation, AH, absoluteentropies, s°, and heat capacities (Cp) at 298 K) corresponding to the fivechemical species in the above chemical reactions are given in Table 1 below.Table 1: Thermodynamic quantities for thereacting gases involved in the manufacture of methanol.CplJ K mol"SpeciesCo(g)H2(g)CH;OH(g)AH /kJ molS'IJ mol K'-110.5197.729.10.0130.728.8-201.5239.843.9

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Answered: Assuming that the constant pressure…

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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Assuming that the constant pressure heat capacities are independent of temperature, use the data below to calculate the equilibrium constant for the reaction at 225, 300 and 450 oC, at standard pressure. Comment on your results.

(i) Standard enthalpy change for the reaction(∆H°_R)= (-91)kJ/mol
(ii) Standard entropy change for the reaction(∆S°_R)= (-219.3 )J/(mol K)
(iii) Standard Gibbs energy change for the reaction(∆G°)= (-25.649) kJ/mol
(iv) Equilibrium constant (k)=1.0104 at 298K
(v) The change in the heat capacity at constant pressure for the chemical reactions, under standard conditions. = 42.8 J/k mol