Data: ΔHf values: CH4 (g), -74.8 kJ: CO2 (g), -393.5 kJ: H2O (l), -285.8 kJ.
Using the ΔHf data above, calculate ΔHrxn for the reaction below.
Reaction: CH4 (g) + 2O2 (g) → CO2 (g) + 2H2O (l)
a. -604.2 kJ
b. 8.90.3 kJ
c. -997.7 kJ
d. -890.3 kJ
e. none of the above
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