13. Solving a chemistry problem
147. Calculate the standard thermal effect of the reaction:
CH4 (g) CO2 (g) = 2CO (g) 2H2 (g)
according to the standard heats of formation:
Substance ΔH° 298, kJ/mol
CH4 (g) -74.85
CO2 (g) -393.51
CO (g) -110.5
H2 (g) 0
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