The discussion revolves around a problem related to mass-energy equivalence, specifically determining the mass equivalent of 17.6 MeV of energy resulting from a fusion reaction.
The conversation is ongoing, with participants providing insights into the significance of the 931.5 MeV value and discussing the appropriateness of using E=mc² in this context. There is recognition of the need for clearer explanations and proper unit handling, but no consensus has been reached.
Participants note that the original poster's explanation of their solution was unclear, and there is an emphasis on understanding the relationship between energy and mass in the context of atomic mass units (amu).
eXmag said:Homework Statement
An unknown amount of mass lost from a fusion reaction is converted to energy. Determine the amount of mass equal to 17.6 MeV of energy.
Homework Equations
E=mc2?
The Attempt at a Solution
17.6=m(931.5)
m=0.01889u
Not sure if this is correct
rude man said:Where did "931.5" come from? √(931.5) = 30.52, I don't recognize this as being c ...
Dick said:931.5 MeV is the rest energy of 1 amu of mass. The 'attempt at a solution' wasn't very well explained. To say the least.
rude man said:Yeah, so looks like E = mc2 is irrelevant & we have just a ratio of energies and finding out how many gm to 1 a.m.u.?