Question

1.2 Assertion - Second ionization enthalpy will be higher the first ionization enthalpy.
Reason - Ionization enthalpy is a quantitative measure of the tendency of an element to lose electron,​

Answer 1

1. Second ionisation enthalphy is the energy required to removed second electron from 1 mole of gaseous 1+ ions to give gaseous 2+ gives.

2.Second ionisation energy is greater than first ionisation energy because after removal of first electrons, the nuclear charge increases and el

Answer 2

Both assertion and reason are true but reason is not the correct explanation of assertion.

Explanation:

• A positive charges ion is much more difficult to remove an electrons from than a neutral atom.
• A neutral atom's electrons are ejected by the first ionization energies, whereas a positively atom's electrons are taken by the second ionization energy.
• Due to the greater attraction force between the electrons and the strong atom, the second ionization energy is the energy is larger than the first.
• Because the protons in the nucleus rises after the initial electron are withdrawn, the second ionization energy is the energy is larger than the first ionization energy because particles are gripped more securely by the nucleus.
• This makes removing second electrons more harder, requiring more energy.
• The ionization enthalpy of a material is a quantification of its ability to lose electrons.
• It is the amount of energy needed to remove one electron from a gaseous atom (X) in its ground state.