Nuclear Chemistry Part 2: Fusion and Fission - Crash Course Chemistry

The video explores the concept of stability in nuclear chemistry, focusing on binding energy and the mass-energy equivalence formula E=mc². It explains nuclear reactions, including fission and fusion, and their role in energy release. The video also covers nuclear power plants, chain reactions, and the challenges of controlling fusion reactions. It highlights the potential of fusion for energy production and the ongoing search for efficient and safe nuclear processes.

What is the primary goal of atomic nuclei in nuclear chemistry?

• To undergo fission

• To release energy

• To achieve stability

• To increase their mass

What does the equation E=mc² represent in nuclear chemistry?

• The speed of light

• The stability of an atom

• The mass-energy equivalence

• The rate of radioactive decay

How is the mass defect of an atom related to its binding energy?

• It is the energy lost during decay

• It is the energy that holds nucleons together

• It is the energy required to add nucleons

• It is unrelated

What happens during a fission reaction?

• A large nucleus splits into smaller ones

• Two light nuclei combine

• Energy is absorbed

• Nucleons are added to the nucleus

Which element is commonly used as fuel in fission reactions?

• Helium

• Iron-56

• Hydrogen

• Uranium-235

What is the main challenge in controlling fission reactions in power plants?

• Reducing radioactive waste

• Increasing the temperature

• Preventing chain reactions

• Producing enough neutrons

What is a significant difference between fission and fusion reactions?

• Fusion releases less energy

• Fission requires higher temperatures

• Fusion involves combining nuclei

• Fission is harder to control

Why are fusion reactions difficult to achieve on Earth?

• They require low temperatures

• They produce too little energy

• They need high speeds and pressures

• They are easily controlled

What is the primary product of fusion reactions in the sun?

• Uranium

• Helium

• Krypton

• Barium

What is a potential benefit of fusion over fission?

• It is easier to control

• It releases more energy

• It requires less fuel

• It produces more radioactive waste