Chapter 18, Problem 59E

Interpretation Introduction

Interpretation: The reason of positive values for the standard free energy of formation of oxides of nitrogen with the help of using example of NO needs to be explained.

Concept Introduction: In the Long form of periodic table, the non-metals are mainly placed at the right side of the periodic table that is called as p-block elements.

Metals make the 75 % part of the periodic table. Metals are electropositive elements and mainly form ionic compound whereas non-metals are electronegative elements and can form either covalent or ionic compounds.

Nitrogen is the first element of group-5A with the valence shell electronic configuration as ${\text{2s}}^2,{\text{2p}}^3$ .