For purposes of a practical (energy producing)reaction one wants a disintegration energy Q that is:
A)positive for fusion reactions and negative for fission reactions
B)negative for fusion reactions and positive for fission reactions
C)negative for both fusion and fission reactions
D)positive for both fusion and fission reactions
E)as close to zero as possible for both fusion and fission reactions

Question

Quizplus · Accepted Answer

For a practical (energy-producing) reaction, the disintegration energy (Q) must be positive for both fusion and fission reactions. This positive Q value indicates that energy is released during the reaction, which is a fundamental requirement for a reaction to be considered energy-producing. In both fusion, where lighter nuclei combine to form a heavier nucleus, and fission, where a heavy nucleus splits into lighter nuclei, a positive Q value signifies that the mass of the reactants is greater than the mass of the products, leading to the release of energy according to Einstein's mass-energy equivalence principle (E=mc^2).

For Purposes of a Practical (Energy Producing)reaction One Wants a Disintegration