Once mass defect is known, nuclear binding energy can be calculated by converting that mass to energy by using E=mc2. Mass must be in units of kg. Once this energy, which is a quantity of joules for one nucleus, is known, it can be scaled into per-nucleon and per-mole quantities.

123.7 MeV

## How do you calculate total binding energy?

The amount of energy required is called the total binding energy (BE), Eb. Eb=(Δm)c2. Experimental results indicate that the binding energy for a nucleus with mass number A>8 is roughly proportional to the total number of nucleons in the nucleus, A.

## Why is Fe 56 the most stable nucleus?

This stability is caused by the attractive nuclear force between nucleons. Iron 56 is the most stable nucleus. It is most efficiently bound and has the lowest average mass per nucleon. It takes more energy per nucleon to take one of these nuclei completely apart than it takes for any other nucleus.

## When two nuclei A <= 10 fuse together to form a heavier nucleus the?

When two nuclei (A < 10) fuse together to form a heavier nucleus, the (A) binding energy per nucleon increases. Explanation: Two nucleus repel each other because of nuclei have like charge. So, tremendous amount of heat and pressure is required to fuse two nucleus.

## What is nuclear fusion equation?

The binding energy B is the energy associated with the mass difference between the Z protons and N neutrons considered separately and the nucleons bound together (Z + N) in a nucleus of mass M. The formula is B = (Zmp + Nmn − M)c2, where mp and mn are the proton and neutron masses and c is the speed of light.

## How much energy is required for nuclear fusion?

Fusion requires temperatures of about 100 million Kelvin (approximately six times hotter than the sun’s core). At these temperatures, hydrogen is a plasma, not a gas. Plasma is a high-energy state of matter in which all the electrons are stripped from atoms and move freely about.

## Is nuclear fusion harmful?

No CO₂: Fusion doesn’t emit harmful toxins like carbon dioxide or other greenhouse gases into the atmosphere. Its major by-product is helium: an inert, non-toxic gas. No long-lived radioactive waste: Nuclear fusion reactors produce no high activity, long-lived nuclear waste.

## Who is closest to fusion energy?

Of these, China’s may be the closest to operation. Known as the China Fusion Engineering Test Reactor (CFETR, Figure 7), this device is in the design and technology prototyping phase. CFETR will be slightly larger than ITER, with a radius of about 7 m.

## What should I study for nuclear fusion?

To study nuclear fusion you want a strong background in E & M, Mechanics, and Plasma Physics and Math. Nuclear Engineering won’t really prepare you for Nuclear Fusion Research. From my experiences with a very good Nuclear Engineering department, it is more based around Fission Power and Weapons and the like.

## What is the biggest obstacle to harnessing the energy of fusion?

The main barrier to a sustained reaction, other than the high cost of the electricity needed to heat the chamber, is finding a material that can withstand that much heat for more than a few seconds.