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Which of the following reactions will have the greatest rate at 298 K. Assume the frequency factor A is the same for all reactions. EXPLAIN YOUR ANSWER. No credit given if no explanation.

a) ΔE = + 10 kJ/mol; Ea = 25 kJ/mol. b) ΔE = -10 kJ/mol; Ea = 25 kJ/mol.

c) ΔE = + 10 kJ/mol; Ea = 11 kJ/mol. d) ΔE = -10 kJ/mol; Ea = 50 kJ/mol.

e) ΔE = + 25 kJ/mol; Ea = 25 kJ/mol.

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