What is the value of electron gain enthalpy of Na+ if IE1 of Na = 5.1 eV?

Question

What is the value of electron gain enthalpy of Na+ if IE1 of Na = 5.1 eV? (A) + 10.2 eV (B) -5.1 eV (C) -10.2 eV (D) + 2.55 eV

Tardigrade Admin · Accepted Answer

The electron gain enthalpy of sodium cation is equal in magnitude and opposite in sign to the first ionization energy of sodium atom. It is equal to −5.1eV.

Q. What is the value of electron gain enthalpy of Na+ if IE1​ of Na=5.1eV?

+ 10.2 eV

-5.1 eV

-10.2 eV

+ 2.55 eV

The electron gain enthalpy of sodium cation is equal in magnitude and opposite in sign to the first ionization energy of sodium atom. It is equal to −5.1eV.

Q. What is the value of electron gain enthalpy of $N a^{+}$ if $I E_{1}$ of $N a = 5.1 e V$ ?