CH-1240
Exothermic and endothermic reactions
Chemistry · Secondary 4 · Medium · Exothermic and endothermic reactions
The first electron affinity of chlorine is −349 kJ/mol.
Which statement correctly describes this value?
Which statement correctly describes this value?
- 349 kJ of energy is absorbed when 1 mol of ions loses an electron.
- 349 kJ of energy is released when 1 mol of ions loses an electron.
- 349 kJ of energy is absorbed when 1 mol of Cl atoms gains an electron.
- 349 kJ of energy is released when 1 mol of Cl atoms gains an electron.
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