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Question
Give equations for the reactions.
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Solution
(i) Steam is passed over hot coke at 1000°C in a furnace called converters. As a result water gas is produced which is a mixture of carbon monoxide and hydrogen gases.
\[\ce{\underset{\text{hot coke}}{C}+\underset{\text{steam}}{H2O}->[1000°C]\underset{\text{water gas}}{(CO + H2)} -Heat}\]
(ii) Water gas is mixed with excess of steam and passed over a catalyst ferric oxide (Fe2O3) and a promotor chromium trioxide (Cr2O3).
\[\ce{\underset{\text{water gas}}{(CO + H2)}+\underset{\text{steam}}{H2O}->[FeO2/Cr2O3][450°C]CO2 + 2H2 + Heat}\]
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