What Is ΔH°_rxn for the Reaction 2Al₂O₃(s) → 4Al(s)

question 108

Multiple Choice

What is ΔH°_rxn for the reaction 2Al₂O₃(s) → 4Al(s) + 3O₂(g) ? ΔH°_f(Al₂O₃(s) ) = -1670 kJ/mol

• A) 3340 kJ/mol
• B) 1670 kJ/mol
• C) -3340 kJ/mol
• D) -1670 kJ/mol
• E) -835 kJ/mol

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Definitions:

Alpha-Helical Structure

A common motif in the secondary structure of proteins, characterized by a right-handed coil that provides structural support.

Hydrogen Bonds

Weak bonds formed between a hydrogen atom covalently bonded to one electronegative atom and another electronegative atom, playing a critical role in the structure of water and biological molecules.

Ionic Interactions

Forces of attraction or repulsion between ions or molecules with different charges.

Molecular Chaperones

Proteins that help other proteins fold properly. Although chaperones do not dictate the folding pattern, they make the process more efficient.