Question

1).What are the confusion M clear fusion respectively? Where does the nuclear energy come from?

2). How much energy will be released if the mass loss in a nuclear reaction is 0.5 kg?

Answer 1

Note: Question 1 is not clear, but it mentions fusion and we are guessing that it is asking for difference between fission and fusion reactions. Also it asks where does the nuclear energy come from?

1. Fission is the nuclear reaction in which a bigger (usually unstable isotope) atoms break into smaller atoms. During the process a huge amount of energy is released. The isotope could be stable first but becomes unstable after absorption of some energy through some particles like neutrons, alpha=particles etc.

Fusion is the nuclear reaction when two smaller atoms fuse together to get a heavier or bigger atom. This is what happens in stars and this is how the heavier elements are formed. This reaction requires a high temperature to start and release a huge amount of energy during the reaction.

The huge amount of energy comes from the mass loss that happens in the reaction (fission and fusion). If we add up the mass of the initial isotope and the end products (smaller atoms and other subsequent particles released), we will find that there is mass loss. This mass loss (M) is converted into the energy (E) in accordance with the following equation:

.....EQ1

where is the speed of light in free space

2.

We are given that M=0.5 kg is the mass loss, hence the energy released can be calculated by EQ1