given-the-following-data-calculate-the-second-electron-affinity-of-sulfur-is-the

Question

Given the following data, calculate the second electron affinity of sulfur. Is the S^2– more stable as a free ion or in CaS?

Table showing the Born Haber cycle data for sulfur and calcium.

Accepted Answer

EA₂ = 570.8 kJ/mol
S^2– is more stable in CaS.

Answer

EA₂ = –365.3 kJ/mol
S^2– is more stable as a free ion.

Answer

EA₂ = –134.2 kJ/mol
S^2– is more stable in CaS.

Answer

EA₂ = 729.1 kJ/mol
S^2– is more stable as a free ion.

Given the following data, calculate the second electron affinity of sulfur. Is the S2– more stable as a free ion or in CaS?