9.The equilibrium constant for an association reaction A+B ABis 1.8x10³ dm³ / mol at 25°C and 3.45×10³ dm³ / molat 40°C. Assuming AHto be independent of temperature, calculate △H⁰=? [Hint: =0.651
(A)33.67 J/mol;
(B) 336.7 J/mol;
(C) 3367 J/mol;
(D) 33.67 kJ/mol;
(E) 336.7 kJ/mol;

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