Water gas, mixturee of h2 and co, is an important industrial fuel produced by the reaction of steam with red hot cake, essentially pur carbon: c + h2o ? co + h2
(a) assuming that coke has the same enthalpy of formation as graphite, calculate ho298 for the reaction.

Explanation:

The formula for calculating the enthalpy change of a reaction by using the enthalpies of formation of reactants and products is

                          C(s) + H₂O(g) ⇌ CO(g) + H₂(g)

ΔH°f/kJ·mol⁻¹:      0      -241.8      -110.5        0

nacl or sodium chloride is an ionic compound. this is because an ionic compound pertains to a compound that consists of positively and negatively charged ions. in this case, na (sodium) has a tendency to lose one electron when it reacts with with other atoms, so the resulting sodium ion contains 11 protons and 10 electrons, thus making it positively charged (na+), when chlorine reacts, it usually gains one electron to form an ion called chloride, thus making it negatively charged ( since the ions are oppositely charged, they attract.

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