To solve the problem, we need to understand what a negative kinetic energy value means in nuclear models.
- In physics, kinetic energy is usually positive because it represents the energy of motion.
- However, in certain nuclear models, especially when describing bound systems like nuclei, energy values can be considered differently.
- The total energy of a system can be negative, indicating that the system is bound and stable.
- A negative kinetic energy value in nuclear models suggests the particle is in a bound state within the nucleus.
- It means the particle does not have enough energy to escape the nuclear potential well.
- The negative value reflects that energy must be supplied to remove (unbind) the particle from the nucleus.
- Negative kinetic energy in nuclear models does not mean actual negative motion energy.
- It signifies the particle is tightly bound inside the nucleus and stable.
In nuclear models, a negative kinetic energy value indicates that the particle is in a bound and stable state within the nucleus.
Mass Defect and Energy Released in the Fission of \( ^{235}_{92}\text{U} \)
When a neutron collides with \( ^{235}_{92}\text{U} \), the nucleus gives \( ^{140}_{54}\text{Xe} \) and \( ^{94}_{38}\text{Sr} \) as fission products, and two neutrons are ejected. Calculate the mass defect and the energy released (in MeV) in the process.
Given: