Post Utme Unn 2023 Chemistry Question 6

Practice objective / multiple choice question 6 from the 2023 Post Utme Unn Chemistry examination.

Post Utme Unn 2023 Chemistry Objective / Multiple Choice

Question 6 POST_UTME_UNN • 2023 • CHEMISTRY • objective

Calculate the s\tandard enthalpy change for the reaction: 2Al(s) + Fe2O3(s) → 2Fe(s) + Al2O3(s). Given that ΔH°(Al2O3(s)) = -1675 kJ/mol, ΔH°(Al(s)) = 0 kJ/mol, ΔH°(Fe2O3(s)) = -825 kJ/mol, and ΔH°(Fe(s)) = 0 kJ/mol.

Correct Answer A. -2750 kJ/mol

B. -1750 kJ/mol

C. -275 kJ/mol

D. -175 kJ/mol

Correct Answer

Correct Option:

-2750 kJ/mol

This is Post Utme Unn 2023 Chemistry Question 6. It is one of the objective questions from the 2023 Post Utme Unn Chemistry examination.

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