## C2H6O2 (ℓ ethylene glycol) + 3 O2 (g) → 2 CO2 (g) + 3 H2O (g)

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## Stoichiometry

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 C2H6O2         Mass: g O2             Mass: g or Gas Volume: L CO2            Mass: g or Gas Volume: L H2O            Mass: g or Gas Volume: L Heat Released: kJ

## Enthalpy of Reaction

[2ΔHf(CO2 (g)) + 3ΔHf(H2O (g))] - [1ΔHf(C2H6O2 (ℓ ethylene glycol)) + 2.5ΔHf(O2 (g))]
[2(-393.51) + 3(-241.82)] - [1(-454.8) + 2.5(0)] = -1057.68 kJ
-1,057.68 kJ     (exothermic)

## Entropy Change

[2ΔSf(CO2 (g)) + 3ΔSf(H2O (g))] - [1ΔSf(C2H6O2 (ℓ ethylene glycol)) + 2.5ΔSf(O2 (g))]
[2(213.68) + 3(188.72)] - [1(166.94) + 2.5(205.03)] = 314.005 J/K
314.01 J/K     (increase in entropy)

## Free Energy of Reaction (at 298.15 K)

From ΔGf° values:
[2ΔGf(CO2 (g)) + 3ΔGf(H2O (g))] - [1ΔGf(C2H6O2 (ℓ ethylene glycol)) + 2.5ΔGf(O2 (g))]
[2(-394.38) + 3(-228.59)] - [1(-323.21) + 2.5(0)] = -1151.32 kJ
-1,151.32 kJ     (spontaneous)

From ΔG = ΔH - TΔS:
-1151.30 kJ     (spontaneous)

## Equilibrium Constant, K (at 298.15 K)

5.1732177622e+201
This process is favorable at 25°C.