Post Utme Abu 2021 Chemistry Question 11

Practice objective / multiple choice question 11 from the 2021 Post Utme Abu Chemistry examination.

Post Utme Abu 2021 Chemistry Objective / Multiple Choice

Question 11 POST_UTME_ABU • 2021 • CHEMISTRY • objective

Determine the s\tandard enthalpy of formation of CaO from the following data: ΔHf(Ca) = -1.85 kJ/mol, ΔHf(O) = -0.40 kJ/mol. The reaction is Ca + 1/2O2 → CaO.

A. -1.25 kJ/mol

Correct Answer B. -1.75 kJ/mol

C. -2.25 kJ/mol

D. -2.75 kJ/mol

Correct Answer

Correct Option:

-1.75 kJ/mol

This is Post Utme Abu 2021 Chemistry Question 11. It is one of the objective questions from the 2021 Post Utme Abu Chemistry examination.

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