Calculate the approximate enthalpy change , δh∘, for the combustion of methane: ch4+2o2⇌2h2o+co2
Asked by maham237 @ in Chemistry viewed by 471 People
ΔHrxn from a given table:
CH4 = 1656 kJ/mol
O2 = 498 kJ/mol
H2O = 928 kJ/mol
CO2 = 1598 kJ/mol
ΔHrxn = [(1656) + (2*498)] - [(2*928) + (1598)] = -802 kJ/mol ?