JEE Main 2019 Chemistry question
When the first electron gain enthalpy () of oxygen is −141 kJ/mol, its second electron gain enthalpy is:
Answer: (A)
Solution
Adding an electron to O requires energy against repulsion.
When the first electron gain enthalpy () of oxygen is −141 kJ/mol, its second electron gain enthalpy is:
Adding an electron to O requires energy against repulsion.