You want to know the standard heat of reaction for the following reaction:
C₂H₄ (g) + 2Cl₂ (g) → C₂HCl₃(l) + H₂ (g) + HCl (g) Calculate the standard heat of reaction using the following reactions:
C₃H₄ (g) + 2Cl₂ (g) → C₂H₂Cl₄ (l) + H₂ (g) where ∆H385.76 kJ/mol
C₂H₂Cl₄ (l) → C₂HCl (l) + HCI (g) where ∆Hr = -35 kJ/mol