Chapter 14, Problem 89CP

a.A flask containing gaseous ${\text{N}}_{\text{2}}$ is irradiated with $\text{25-nm}$ light. Using the following information, indicate what species can form in this flask duringirradiation.

${\text{N}}_{\text{2}}\text{(g)}\to \text{2N(g)}\text{ΔH}\text{=}\text{941}\text{kJ/mol}$

${\text{N}}_{\text{2}}\text{(g)}\to {\text{N}}_{\text{2}}{}^{\text{+}}\text{(g)+}{\text{e}}^{-}\text{ΔH}\text{=}\text{1501}\text{kJ/mol}$

$\text{N(g)}\to {\text{N}}^{\text{+}}\text{(g)+}{\text{e}}^{-}\text{ΔH}\text{=}\text{1402}\text{kJ/mol}$

b.What range of wavelengths will produce atomicnitrogen in the flask but will not produce any ions?

c.Explain why the first ionization energy of ${\text{N}}_{\text{2}}$ $(\text{1501}\text{kJ/mol)}$ is greater than the first ionizationenergy of atomic nitrogen $(\text{1402}\text{kJ/mol)}$ .