Question

When the first electron gain enthalpy (∆ₑgH) of oxygen is -141 kJ/mol, its second electron gain enthalpy is
(A) a more negative value than the first (B) almost the same as that of the first
(C) negative, but less negative than the first (D) a positive value

Answer 1

ANSWER

A positive value

SOLUTION

 Second electron gain enthalpy is always positive for every element.

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