A mixture of gases containing mainly carbon monoxide and hydrogen is produced by the reaction of alk — Physical Chemistry Chemistry Question
Reaction of Alkanes with Steam
A mixture of gases containing mainly carbon monoxide and hydrogen is produced by the reaction of alkanes with steam:
CH4 + ½ O2 → CO + 2 H2 ∆H = 36 kJ mol-1 (1)
CH4 + H2O → CO + 3 H2 ∆H = 216 kJ mol-1 (2)
2.1.
Using equations (1) and (2) write down an overall reaction (3) so that the net
Model Answer
6 CH4 + 3 O2 → 6 CO + 12 H2 ∆H = – 216 kJ mol-1
CH4 + H2O → CO + 3 H2 ∆H = 216 kJ mol-1
7 CH4 + 3 O2 + H2O → 7 CO + 15 H2 ∆H = 0 kJ mol-1
2.2.
CO + H2O → CO2 + H2
2.3.
Calculate the number of moles of each gas leaving the reactor.
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