For Which of the Following Reactions Is the Enthalpy Change $\rarr$

Multiple Choice

For which of the following reactions is the enthalpy change equal to the second ionization energy of nitrogen

A) N²⁺(g) $\rarr$ N³⁺(g) + e^-
B) N²⁺(g) + e^- $\rarr$ N⁺(g)
C) N(g) $\rarr$ N²⁺(g) + 2e^-
D) N^-(g) + e^- $\rarr$ N^2-(g)
E) N⁺(g) $\rarr$ N²⁺(g) + e^-