Producer gas (carbon monoxide) is prepared by passing air over red-hot coke:

Water gas (mixture of carbon monoxide and hydrogen) is prepared by passing steam over red-hot coke:

For many years, both producer gas and water gas were used as fuels in industry and for domestic cooking. The large-scale preparation of these gases was carried out alternately, that is, first producer gas, then water gas, and so on. Using thermochemical reasoning, explain why this procedure was chosen.

Transcribed Image Text:

C(s) +3O2(g) -→ CO(g) C(s) +H20(g)CO(g) H2(g)