Post Utme Lead City University 2021 Chemistry Question 16

Practice objective / multiple choice question 16 from the 2021 Post Utme Lead City University Chemistry examination.

Post Utme Lead City University 2021 Chemistry Objective / Multiple Choice
Question 16 POST_UTME_LEAD_CITY_UNIVERSITY • 2021 • 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: Al(s) = 0 kJ/mol, HCl(aq) = -92.3 kJ/mol, AlCl3(aq) = -704.0 kJ/mol, H2(g) = 0 kJ/mol. Use the following equation: ΔH° = ΔHf°(products) - ΔHf°\( reac\tants \).

Answer Options

Correct Answer A. -1452.6 kJ/mol
B. -704.0 kJ/mol
C. -92.3 kJ/mol
D. 1452.6 kJ/mol
Correct Answer
A
Correct Option:
-1452.6 kJ/mol

About This Question

This is Post Utme Lead City University 2021 Chemistry Question 16. It is one of the objective questions from the 2021 Post Utme Lead City University Chemistry examination.

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