Question

A heavy nucleus having mass number $200$ gets disintegrated into smaller fragments of mass number $80$ and $120$ . If binding energy per nucleon for parent atom is $\text{6.5}eV$ and for daughter nuclei are $7eV$ and $8eV$ respectively and the energy released in the decay is given by $X\times 10^{5}eV$ , then $X$ will be

Answer 1

Answer: 2200

²⁰⁰X → ⁸⁰Y + ¹²⁰Z
6.5 7 8
Energy released = 80 × 7 + 120 × 8 - 200 × 6.5
= 220 MeV
= 2200 × 10⁵ eV