The energy released during conversion of million atoms of iodine in gaseous state to iodide ions in gaseous state is 4 . 9 × 10 - 13 J . What is the electron gain enthalpy in e V / a t o m . [Report your answer by rounding it upto nearset whole number]

Step-by-step solution

∴ 10 6 a t o m s o f I g = 4 . 9 × 10 - 13 J ∴ 6.023 × 10 23   atoms     of   I g = 4.9 × 10 − 13 × 6.023 × 10 23 J 10 6 E = 295 . 127 k J / m o l e Also E = 295 . 127 × 10 3 1 . 60 × 10 - 19 × 6 . 023 × 10 23 ≃ 3 e V