Question

The first electron gain enthalpy of oxygen is \( -141 \, \text{kJ mol}^{-1} \), its second electron gain enthalpy is:

• A. A positive value
• B. Less negative value than the first
• C. Maximum negative value than the first
• D. Same value as that of the first

Hint:

Second electron gain enthalpy is always positive because adding an electron to a negatively charged ion requires energy to overcome repulsion.

Answer 1

The Correct Option is A