Post Utme Oau 2023 Chemistry Question 1

Practice objective / multiple choice question 1 from the 2023 Post Utme Oau Chemistry examination.

Post Utme Oau 2023 Chemistry Objective / Multiple Choice
Question 1 POST_UTME_OAU • 2023 • CHEMISTRY • objective

Calculate the s\tandard enthalpy change (ΔH°) for the reaction: 2Al(s) + 6HCl(aq) → 2AlCl3(aq) + 3H2(g). The s\tandard enthalpy of formation (ΔHf°) values are: ΔHf°(AlCl3) = -704.2 kJ/mol, ΔHf°(H2) = 0 kJ/mol, ΔHf°(Al) = 0 kJ/mol, ΔHf°(HCl) = -92.3 kJ/mol.

Answer Options

Correct Answer A. -1668.6 kJ/mol
B. -704.2 kJ/mol
C. -92.3 kJ/mol
D. -1668.6 kJ/mol
Correct Answer
A
Correct Option:
-1668.6 kJ/mol

About This Question

This is Post Utme Oau 2023 Chemistry Question 1. It is one of the objective questions from the 2023 Post Utme Oau Chemistry examination.

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