Which of the following statements about ion formation is true?
A) Enthalpy of ionization is the standard enthalpy for the gain of one or more electrons by an atom.
B) The enthalpies of ionization are the kinetic versions of ionization energy.
C) Enthalpies of ionization are numerically very different from values for electron gain.
D) None of the above are true.

Question

Quizplus · Accepted Answer

The enthalpy of ionization refers to the energy required to remove an electron from an atom or ion in its gaseous state, which is essentially the concept of ionization energy, not the gain of electrons. The enthalpies of ionization are not kinetic versions of ionization energy; they are a measure of the energy change involved in the process, typically expressed in terms of thermodynamics. Also, enthalpies of ionization and values for electron gain (electron affinity) are related to different processes (removal vs. gain of an electron), but saying they are numerically very different without context is misleading, as their magnitudes can vary widely depending on the element.

Which of the Following Statements About Ion Formation Is True