Final answer:
The amount of energy released when 1.00 mole of sulfur trioxide is produced is closest to 97 kJ, as approximately half of the 198 kJ released for 2 moles.
Step-by-step explanation:
The question involves determining the amount of energy released when 1.00 mole of sulfur trioxide (SO3) is produced. Based on the given information, the production of 2 moles of SO3 releases 198 kJ of energy. Therefore, when about 1 mole of SO2 reacts, it will release half of 198 kJ, which is 99 kJ. However, the provided result of 89.6 kJ is slightly less than half of 198 kJ. Since the exact amount released for 1 mole is not given and none of the choices exactly match 99 kJ, we must consider the closest option that would be slightly less. The closest choice to 99 kJ, while being slightly less, would be 98.5 kJ if rounding, but this is not an option provided. The best choice given the options and context is 97 kJ (Option b), acknowledging that this is an approximation based on the available answer choices.