The maximum potential energy due to electrostatic repulsion between two hydrogen nuclei is nearly (radius of the nucleus =1.1 fermi ) [ 1 4 ₀ =9 10^9 Nm ^2 C ⁻² ]

Step-by-step solution

Potential energy due to two charges = k q₁ q₂ d . For hydrogen atom, q₁=q₂=1.6 10⁻¹⁹ C aligned U & = 9 10^9 (1.6 10⁻¹⁹ )^2 2.2 10⁻¹⁵ = & 10.47 10⁻¹⁴ ~J = 10.47 10⁻⁴ 1.6 10⁻¹⁹ eV & =6.5 10^5 eV =0.65 MeV aligned