You are given the following data: H₂(g) → 2H (g) Br₂(g) → 2 Br (g) 2HBr(g) → H₂(g) + Br₂ (g) kJ mol 0- x10 ΔΗ° = 436.4 - = X ΔΗ° = 192.5 Calculate AH° for the reaction H(g) + Br(g) → HBr (g) Be sure your answer has the correct number of significant digits. ΔΗ° = 72.4 kJ mol kJ mol kJ mol

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