Question

Question #1ffa9

Answer 1

The reaction will produce 89.4 kJ of heat.

Explanation:

`"Fe"_2"O"_3 + "3CO" → "2Fe" + "3CO"_2`

According to the balanced equation, 1 mol of `"Fe"_2"O"_3` produces 26.3 kJ of heat.

Treat the heat as if it were a product in the reaction. Then

`3.40 cancel("mol Fe"_2"O"_3) × "26.3 kJ"/(1 cancel("mol Fe"_2"O"_3)) = "89.4 kJ"`

The reaction produces 89.4 kJ of heat.