AIPMT MAINS2011Chemistry-Thermodynamics
AIPMT MAINS 2011 Chemistry Electron Gain Enthalpy MCQ Question
Type: MCQ-conceptual-Medium-Class 11
What is the value of electron gain enthalpy of Na⁺ if IE₁ of Na = 5.1 eV?
A
+2.55 eV
B
+10.2 eV
C
−5.1 eV
D
−10.2 eV
Correct Answer
Option C
Detailed Explanation
Electron gain enthalpy is the reverse of ionization energy, hence it is negative of the given ionization energy.
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