1. The problem statement, all variables and given/known data 2. Relevant equations 3. The attempt at a solution I'm not sure how to go about working on this. What I have tried is this line of reasoning: 1x4He needs 2x3He. 2x3He needs 2x(2H + p) Energy released is therefore 12.98 + 2(5.51) _+ 2(0.41) = 24.82 MeV. However, it does seem that there are no p's in the result of the first reaction to stick into the second. Could anyone shed some light on the proper way to go about solving this? Thanks.