Mass Defect & Binding Energy (5 of 7), Fission of Uranium 235

TL;DR

Calculating the energy released from the nuclear fission of uranium-235 and the change in mass from one gram of uranium-235.

Transcript

okay into the video as you can see we're gonna be going apartment flying mastic that the binding energy we're gonna figure out the amount of energy released during nuclear fission of uranium-235 and this is what our problem says it says in a nuclear fission reaction uranium-235 can be split into Krypton 92 and barium 141 and we want to use the mass... Read More

Key Insights

• ❓ Uranium-235 can undergo nuclear fission, resulting in the release of energy.
• 💆 The mass defect, caused by the missing mass, is converted into energy.
• 😑 The energy released during nuclear fission can be expressed in both electron volts and joules.
• 💆 One gram of uranium-235 can release a significant amount of energy, even though the mass change is minimal.

Questions & Answers

Q: How is the mass defect calculated in nuclear fission?

The mass defect is calculated by subtracting the mass of the products from the mass of the reactants. It represents the missing mass that has been converted into energy.

Q: How is the energy released during nuclear fission calculated?

The energy released during nuclear fission is calculated by converting the mass defect into energy using Einstein's equation, E=mc^2. The mass defect is converted into kilograms and then multiplied by the speed of light squared.

Q: How is the energy expressed in electron volts?

The energy in joules can be converted to electron volts by dividing the energy value by 1.6 x 10^-19 joules per electron volt.

Q: How is the total energy released from one gram of uranium-235 calculated?

To calculate the total energy released from one gram of uranium-235, the number of uranium-235 atoms present in one gram is determined and multiplied by the energy released from one reaction.

Summary & Key Takeaways

• The video demonstrates how to calculate the energy released during the nuclear fission of uranium-235 using atomic mass units.

• The mass defect is determined by subtracting the mass on the right (products) from the mass on the left (reactants).

• The mass defect is converted into energy using Einstein's equation, and the energy is then converted into electron volts and joules.