Given the Following Reactions Fe₂O₃ (S)+ 3CO (S)→ 2Fe (S)

question 117

Multiple Choice

Given the following reactions Fe₂O₃ (s) + 3CO (s) → 2Fe (s) + 3CO₂ (g) ΔH = -28.0 kJ
3Fe (s) + 4CO₂(s) → 4CO (g) + Fe₃O₄(s) ΔH = +12.5 kJ
The enthalpy of the reaction of Fe₂O₃ with CO
3Fe₂O₃ (s) + CO (g) → CO₂ (g) + 2Fe₃O₄ (s)
Is ________ kJ.

• A)-59.0
• B)40.5
• C)-15.5
• D)-109
• E)+109

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Definitions:

Endocrine System

A collection of glands that produce hormones which regulate metabolism, growth and development, tissue function, and mood.

Exocrine Glands

Glands that release their secretions through ducts either to the external environment or into the internal organ surfaces.

Hypothalamus

A region of the brain below the thalamus that coordinates both the autonomic nervous system and the activity of the pituitary, controlling body temperature, hunger, and thirst.

Plasma Proteins

Proteins present in blood plasma that play roles in blood clotting, immunity, and other functions.