Calculate the free energy for the oxychlorination of ethylene to vinyl chloride, CH₂CHCl, under standard conditions at 100^oC given the thermodynamic data below collected at 25^oC:
$\Delta$ G^o = 53.6(CH₂CHCl), -95.3(HCl), 68.49(CH₂CH₂), -228.7(H₂O) kJ/mol
$\Delta$ H^o = 37.2(CH₂CHCl), -92.3(HCl), 52.4(CH₂CH₂), -241.8(H₂O) kJ/molThe equation of reaction is:
CH₂CH₂ ₍_g₎ + HCl ₍_g₎ + $\frac{1} {2}$ O₂ ₍_g₎ $\rarr$ CH₂CHCl ₍_g₎ + H₂O ₍_g₎

Question

Calculate the free energy for the oxychlorination of ethylene to vinyl chloride, CH₂CHCl, under standard conditions at 100^oC given the thermodynamic data below collected at 25^oC:

\Delta

G^o = 53.6(CH₂CHCl), -95.3(HCl), 68.49(CH₂CH₂), -228.7(H₂O) kJ/mol

\Delta

H^o = 37.2(CH₂CHCl), -92.3(HCl), 52.4(CH₂CH₂), -241.8(H₂O) kJ/molThe equation of reaction is:
CH₂CH₂ ₍_g₎ + HCl ₍_g₎ +

\frac{1} {2}

O₂ ₍_g₎

\rarr

CH₂CHCl ₍_g₎ + H₂O ₍_g₎

Quizplus · Accepted Answer

This problem requires several steps. Must calculate $\Delta$ G^o and $\Delta$ H^o at 25^oC from data given and use this to determine $\Delta$ S^o. The values of $\Delta$ H^oand $\Delta$ S^ocan then be used to find $\Delta$ G^oat temperature other than 25^oC.

Calculate the Free Energy for the Oxychlorination of Ethylene to Vinyl