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A) Ea= Ea3 = 54 kJ/mol , ΔE= ΔE3 = 8 kJ/mol .
B) Ea= Ea2 = 36 kJ/mol , ΔE= ΔE2 = -10 kJ/mol .
C) Ea= Ea1 = 45 kJ/mol , ΔE= ΔE1 = -25 kJ/mol .
D) Ea= 36 kJ/mol , ΔE= ΔE2 = -10 kJ/mol and Ea= 54 kJ/mol , ΔE= ΔE3 = 8 kJ/mol

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