The electron gain enthalpy () can be negative or positive depending on the stability of the atom and the charge of the species. For which of the following specific isolated gaseous processes is energy

Question

The electron gain enthalpy ($\Delta_{eg}H$) can be negative or positive depending on the stability of the atom and the charge of the species. For which of the following specific isolated gaseous processes is energy strictly ABSORBED ($\Delta_{eg}H = 	ext{positive}$)?

Prashant Kotian · Accepted Answer

Correct answer: A,C,D. Process A is endothermic due to strong inter-electronic repulsion (adding an electron to an already negative ion). Process C is endothermic because Nitrogen has a highly stable half-filled configuration. Process D is endothermic because Neon is a noble gas with a completely filled valence shell. Process B is standard and highly exothermic.

💡 Solution & Explanation

Practice 22,000+ questions like this