What does ∆H represent in the following equation ? Cl(g) + e- → CI- (g); ∆H = – 363 kJ mol-1
- lonization energy
-
Electron affinity
- Dissociation energy
- Heat of atomization
The correct answer is: B
Explanation
Electron affinity is defined as the amount of energy released when an electron is added to a neutral atom to form an anion.
From the reaction, an electron is added to a neutral atom, Cl, and an anion Cl- is formed. Therefore, the correct answer is option B