Gujarat BoardEnglish MediumSTD 11 ScienceChemistryHydrogen2 Marks
Question
What do you understand by the terms:
Water-gas shift reaction.
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Answer
Water shift reaction: It is a reaction of carbon monoxide of syngas mixture with steam in the presence of a catalyst as,
$\text{CO}_{(\text{g})}+\text{H}_2\text{O}_{(\text{g})}\xrightarrow[\text{Catalyst}]{\ \ \ \ \ \ \ \ \ {673\text{K}} \ \ \ \ \ \ \ }\text{CO}_{2(\text{g})}+\text{H}_{2(\text{g})}$
This reaction is used to increase the yield of dihydrogen obtained from the coal gasification reaction as,
$\text{C}_{\text{g}}+\text{H}_2\text{O}_{(\text{g})}\xrightarrow{\ \ \ \ \ \ \ \ \ \ \ \ \ }\text{CO}_{\text{(g)}}+\text{H}_{2\text{(g)}}$
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