Formation of carbon dioxide hinders in calculating the heat of formation of:
Correct answer: C. CO
- A. CCl4
- B. O3
- C. CO
- D. C
Explanation
The heat of formation of carbon monoxide is difficult to determine because carbon tends to form carbon dioxide when burned in oxygen. Preventing complete oxidation to CO₂ requires precise control, making the direct calculation of CO's heat of formation challenging.
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About Thermochemistry and Energetics of Chemical Reactions
Thermochemistry measures energy changes in chemical reactions and distinguishes exothermic from endothermic processes. Work covers systems, surroundings and state functions, internal energy, the first law of thermodynamics, enthalpy and Hess's law, including the sign conventions used when heat enters or leaves a system.
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