Question

what is ionisation enthalpy ?

not copy Google you copy reported answer ⚫​

Answer 1

Explanation:

Ionization energy is the energy required to remove an electron from a gaseous atom or ion. The first or initial ionization energy or Ei of an atom or molecule is the energy required to remove one mole of electrons from one mole of isolated gaseous atoms or ions.

You may think of ionization energy as a measure of the difficulty of removing electron or the strength by which an electron is bound. The higher the ionization energy, the more difficult it is to remove an electron. Therefore, ionization energy is in indicator of reactivity. Ionization energy is important because it can be used to help predict the strength of chemical bonds.

Also Known As: ionization potential, IE, IP, ΔH°

Units: Ionization energy is reported in units of kilojoule per mole (kJ/mol) or electron volts (eV).

Answer 2

⚫The first ionization energy of sodium, for example, is the energy it takes to remove one electron from a neutral atom. The second ionization energy is the energy it takes to remove another electron to form an Na2+ ion in the gas phase. The third ionization energy can be represented by the following equation.

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