Post Utme Eksu 2020 Chemistry Question 31

Practice objective / multiple choice question 31 from the 2020 Post Utme Eksu Chemistry examination.

Post Utme Eksu 2020 Chemistry Objective / Multiple Choice

Question 31 POST_UTME_EKSU • 2020 • CHEMISTRY • objective

Calculate the s\tandard enthalpy change (ΔH°) for the reaction: 2NO(g) + O2(g) → 2NO2(g). Given that the s\tandard enthalpy of formation (ΔHf°) for NO(g) is -90.25 kJ/mol, for O2(g) is 0 kJ/mol, and for NO2(g) is -51.3 kJ/mol.

Correct Answer A. -189.4 kJ/mol

B. -189.8 kJ/mol

C. -189.2 kJ/mol

D. -189.6 kJ/mol

Correct Answer

Correct Option:

-189.4 kJ/mol

This is Post Utme Eksu 2020 Chemistry Question 31. It is one of the objective questions from the 2020 Post Utme Eksu Chemistry examination.

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