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A+B + C+D (In this equation A, B, C and D stand for some unknown chemical formulas.) Here is an energy diagram for the reacti

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250 • AH, = -100kJ/mol • Exothermie gan Eact - (250-200) fount = 50 kJ/mol ATB 200: xn. 100V xxn Coordinate • • Fact acnerseYes enthalpy can be measured.

Activation energy for both forward and backward rxns can be measured.

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