Problem: 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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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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