Consider the so called D -T reaction (deuterium - tritium fusion ) $_1H^2 +_1H^{3} \to _2He^{4} +n$ consider the radius of both detriment and tritium to be approximately $2.0\;fm$ . What is the kinetic energy needed to overcome the coulomb repulsion between the two nuclei? To what temperature must the gases be heated to initiate the reaction ?

Question

$\begin{array}{1 1} T= 1.39 \times 10^7\;k\;K.E=5.76\times 10^{-14}\;J \\ T= 1.39 \times 10^8\;k \;K.E= 57.6 \times 10^{-14}\;J \\ T= 1.39 \times 10^9\;k\;K.E= 5.76 \times 10^{-14}\;J \\ T= 139 \times 10^9\;k \;K.E= 57.6 \times 10^{-14}\;J \end{array}$