Post Utme Aaua 2019 Chemistry Question 21

Practice objective / multiple choice question 21 from the 2019 Post Utme Aaua Chemistry examination.

Post Utme Aaua 2019 Chemistry Objective / Multiple Choice

Question 21 POST_UTME_AAUA • 2019 • CHEMISTRY • objective

Determine the s\tandard enthalpy change for the reaction: 2Al(s) + Fe2O3(s) → 2Fe(s) + Al2O3(s). The s\tandard enthalpy of formation for Al2O3(s) is -1675 kJ/mol, and the s\tandard enthalpy of formation for Fe2O3(s) is -824 kJ/mol. The s\tandard enthalpy of formation for Al(s) is 0 kJ/mol, and the s\tandard enthalpy of formation for Fe(s) is 0 kJ/mol.

Correct Answer A. -1829 kJ/mol

B. -1675 kJ/mol

C. -824 kJ/mol

D. -2869 kJ/mol

Correct Answer

Correct Option:

-1829 kJ/mol

This is Post Utme Aaua 2019 Chemistry Question 21. It is one of the objective questions from the 2019 Post Utme Aaua Chemistry examination.

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