Post Utme Unn 2021 Chemistry Question 1

Practice objective / multiple choice question 1 from the 2021 Post Utme Unn Chemistry examination.

Post Utme Unn 2021 Chemistry Objective / Multiple Choice

Question 1 POST_UTME_UNN • 2021 • CHEMISTRY • objective

Calculate the s\tandard enthalpy change (ΔH°) for the reaction: 2Al(s) + Fe2O3(s) → 2Fe(s) + Al2O3(s). Given that the s\tandard enthalpy of formation (ΔHf°) for Al2O3(s) is -1675.7 kJ/mol, and the s\tandard enthalpy of formation for Fe(s) is 0 kJ/mol.

Correct Answer A. -1651.4 kJ/mol

B. -1675.7 kJ/mol

C. -1699.0 kJ/mol

D. -1712.3 kJ/mol

Correct Answer

Correct Option:

-1651.4 kJ/mol

This is Post Utme Unn 2021 Chemistry Question 1. It is one of the objective questions from the 2021 Post Utme Unn Chemistry examination.

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