Use the enthalpies of formation in the table below to answer the following questions. Substance Enthalpy...

Use the enthalpies of formation in the table below to answer the following questions.

Substance	Enthalpy of Formation (kJ/mol), 298 K
Oxygen (O₂)(g)	0
Methane (CH₄)(g)	-74.8
Carbon Dioxide (CO₂)(g)	-393.5
Water (H₂O)(g)	-241.8
Water (H₂O)(l)	-285.8

A) Calculate the change in enthalpy for the combustion of methane using the values in the table above (assuming that the system remains at 298 K) for the combustion of methane to form carbon dioxide and gaseous water.

B) Repeat this calculation assuming that the product is liquid water.

C) Explain what this difference represents.

Expert Solution

queen_honey_blossom answered 2 years ago

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