CAD-8104 Lecture Notes - Lecture 10: Water-Gas Shift Reaction, Equilibrium Constant, Chemical Equation

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17 Jun 2020
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CHEM 2426 HOMEWORK SOLUTIONS
In the industrial synthesis of hydrogen, mixtures
of CO andH2,am enriched inH2,by allowing the
CO to react with steam. The chemical equation
for this so-called water-gas shift reaction is
CO(g) + H20(g) c02(g) + H2(g)
What is the value ofKvat 700 K if the partial
pressures in an equilibrium mixture at 700 K are
1.31 atm of CO, 10.0 atm of H202 6.12 atm of
CO2 and 20.3 atm of H2?
The water gas shift reaction is CO(04120(00
CO, (g)+142 (g) Equilibrium constant K, At 700K
P00 =1.31 Wm P„, =10.0 atm P„, = 20.3 atm
P0,=6.12 atm By putting all these values in the
equilibrium equation, we get K 6.12 x 20.3
1.31=10.0
1K, =9.4831
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