Use the information provided to determine Δ_rH° for the following reaction: Δ_fH° (kJ mol^-1) CH₄(g) + 3Cl₂(g) → CHCl₃(l) + 3HCl(g) Δ_rH°= ?
CH₄(g) -75
CHCl₃(l) -134
HCl(g) -92

Question

Use the information provided to determine Δ_rH° for the following reaction: Δ_fH° (kJ mol^-1)CH₄(g)+ 3Cl₂(g)→ CHCl₃(l)+ 3HCl(g)Δ_rH°= ? CH₄(g) -75 CHCl₃(l)-134 HCl(g) -92

Quizplus · Accepted Answer

The reaction enthalpy change (Δ_rH°) is calculated using the formula: Δ_rH° = ΣΔ_fH°(products) - ΣΔ_fH°(reactants). For the given reaction: Δ_rH° = [(-134) + 3(-92)] - [(-75) + 3(0)] = -134 - 276 + 75 = -335 kJ mol^-1.

Use the Information Provided to Determine ΔrH° for the Following

Use the Information Provided to Determine Δ_rH° for the Following