Calculate the ΔH° for the following reaction using the information below it.
C₂H₅OH(l) + O₂(g) CH₅CO₂H(l) + H₂O(l); ΔH° = ?
C₂H₅OH(l) + 1/2 O₂(g) CH₅CHO(l) + H₂O(l); ΔH° = -175 kJ
CH₃CHO(l) + 1/2 O₂(g) CH₅CO₂H(l); ΔH° = -318 kJ
A. -493 kJ
B. 493 kJ
C. 143 kJ
D. -143 kJ
E. 247 kJ