The Haber Process combines nitrogen from the air with hydrogen derived mair (methane) into ammonia. The reaction is reversible and the production of amm
The Haber Process combines nitrogen from the air with hydrogen derived mair (methane) into ammonia. The reaction is reversible and the production of amm
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:H₂
N₂
Unreacted gases
Catalytic chamber
Compresser
R
Recycler
Liquid ammonia
How would you refine this process to produce the most ammonia possible? (DOK 3)
Add 1000 kJ to speed up reaction because heat increases the formation of products, and
increase the pressure to favor the products.
Add 1000 kJ to speed up reaction because heat increases the formation of products and
increase the pressure to favor reactants.
Add 10 kJ to speed up reaction without shifting to the formation of reactants, and increase the
pressure to favor products.
Add 10 kJ to speed up reaction without shifting to the formation of reactants, and increase the
pressure to favor reactants.
Transcribed Image Text:The Haber Process combines nitrogen from the air with hydrogen derived mainly from natural gas
(methane) into ammonia. The reaction is reversible and the production of ammonia is exothermic.
N2(g) + 3H2(g)
H₂
A flow scheme for the Haber Process looks like this. For those who may not know, a compresser
increases pressure.
2NH3(g)
Unreacted gases
Catalytic chamber
N₂ Compresser
AH = -92 kJ mol-1
R
Recycler
Liquid ammonia
How would you refine this process to produce the most ammonia possible? (DOK 3)
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Step 1: Thermodynamic aspect of Ammonia Synthesis(Temperature and Pressure effects)
VIEWStep 2: Chemical Kinetics aspect of Ammonia Synthesis(Temperature effect)
VIEWStep 3: Comparison of the Thermodynamic and Kinetics aspects of ammonia formation(Temperature Effect)
VIEWStep 4: Comparison of the amount heat addition and increase in pressure on the formation of ammoia
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