8. In idealized spectator stripping the atom left behind continues with its velocity unaltered. The reaction Ar+ + D2 → ArD+ + D is 145 KJ ·Mol-1 exoergic.a. Use conservation of momentum and show that in ideal stripping, the relative translational energy after reaction is E = 10ET/21, where ET is the collision energy.b. Since excess collision energy must appear as internal energy of ArD+, at what collision energy does the reactive cross section for stripping go to zero? The bonding energy for ArD+is 370 KJ·Mol-1