Chain Reactions The Fission Reactor

Slides:

Advertisements

Similar presentations

Transmutation (Objective 25

Advertisements

Nuclear Physics Selected Topics 5 –Fission and Fusion.

1 Chapter 9 Nuclear Radiation 9.6 Nuclear Fission and Fusion Copyright © 2005 by Pearson Education, Inc. Publishing as Benjamin Cummings.

Nuclear Energy.

Section 3.  Inside the nucleus of the atom contains protons and neutrons.  Nuclear reactions involves tremendous amounts of energy.  Two types of nuclear.

General, Organic, and Biological Chemistry Fourth Edition Karen Timberlake 4.6 Nuclear Fission and Fusion Chapter 4 Nuclear Chemistry © 2013 Pearson Education,

General, Organic, and Biological ChemistryCopyright © 2010 Pearson Education, Inc.1 Chapter 4 Nuclear Chemistry 4.6 Nuclear Fission and Fusion.

1 Chapter 9 Nuclear Radiation 9.6 Nuclear Fission and Fusion Copyright © 2009 by Pearson Education, Inc.

Nuclear Energy.

Nuclear Fission.

Nuclear Fission & Fusion Objectives: Describe what happens in a nuclear chain reaction. Explain the use of water in the storage of spent fuel rods. Distinguish.

Nuclear Energy Chapter 12 Section 3. Standard S 6.6.a Students know the utility of energy sources is determined by factors that are involved in converting.

Fission and Fusion Nuclear Fission

Nuclear Fission Nuclear Fission is when a large nucleus splits into two smaller nuclei, releasing neutrons and energy –Heavier nuclei tend to be more.

Controlling nuclear chain reactions By Matthew Boulton, Joshua Cooper, George Gallagher, Jonathon Griffiths, Dharmveer Sharma.

Nuclear Reactions Powering the Sun since 4.6 Billion B.C.

For each atom, in its natural state, the number of electrons and the number of protons is equal. This number may or may not be the same as the number.

Lesson.7: Nuclear Fission, Radioactivity and Energy Objectives Describe the process of generating electricity using nuclear power. Describe the process.

IP Nuclear fission © Oxford University Press 2011 Nuclear fission.

What is a Fission Reactor?What is a Fission Reactor?  The Principles of Fission Reactors are similar to that of an Atomic Reactor  Fission Reactors.

Nuclear Energy Power Plants. Chernobyl Fuel  Uranium-235  an isotope of naturally occurring uranium- 238  Uranium is mined-common mineral is urananite.

Basic Chemistry Copyright © 2011 Pearson Education, Inc. 1 Chapter 16 Nuclear Radiation 16.6 Nuclear Fission and Fusion.

10.4 Fission vs. Fusion Distinguish between fission and fusion.

Nuclear Reactions Fission and Fusion. FISSION The splitting of an atomic nucleus into 2 smaller particles. Animation.

Chain Reactions The Fission Reactor Chain reactions One of the products of nuclear fission reactions are neutrons. But these are free to hit other nuclei.

P3 - Physics Nuclear Fusion & Fission P3 – Physics - Aims  to sketch a labelled diagram to illustrate how a chain reaction may occur.

Fission By Tony Chitty. Fission Nuclear Fission is the splitting of an atomic nucleus. Atomic bombs and nuclear reactors both perform nuclear fission.

 In nuclear fission, large atoms are split apart to form smaller atoms, releasing energy.  Fission also produces new neutrons when an atom splits. 

Fission and Fusion. Nuclear Reactions Two types of nuclear reactions that release energy.  Fission  Fusion.

Nuclear Fission and Fusion

Energy from splitting Uranium atoms. How it works In Nuclear power stations a "chain reaction" inside a nuclear reactor makes the heat.

Nuclear fission and fusion This quiz has 10 questions. For each question you have to decide which box to click. BEWARE ! One mistake and you have to start.

Chapter 25 Nuclear Chemistry 25.3 Fission and Fusion

6 mark question.

Fission and Fusion of Atomic Nuclei

Karnataka Arts, Science & Commerce College, Bidar

Chapter 9 Nuclear Radiation

Chapter 5 Energy Resources

Chapter 11 Resources & Energy.

Section 3: Fission and Fusion

Nuclear Fission.

The splitting of nuclei is _______________.

Nuclear Fission and Fusion

ENERGY SOURCES Nuclear Energy

Agree Learning Outcomes:

Nuclear Energy Fission vs Fusion.

How does a nuclear power station work?

NUCLEAR CHEMISTRY Unit 1 Notes.

Fission and Fusion of Atomic Nuclei

Nuclear Reactions.

What is nuclear fission and how is it useful?

NUCLEAR REACTIONS.

Chapter 9 Nuclear Radiation

Nuclear Fission.

Nuclear Reactions.

Chemistry 25.3.

Nuclear Energy.

Nuclear Reactions.

PHYSICS REVIEW HOW DOES A FOSSIL FUELLED POWER STATION GENERATE ELECTRICITY? Power station image -

Chapter 9 Nuclear Radiation

NUCLEAR FISSION AND FUSION

11.3 Nuclear Energy Key Concepts:

Nuclear Fusion & Fission

Nuclear Fission and Fusion

Nuclear Energy.

Fission and Fusion.

Section 3: Fission and Fusion

Chemistry 25.3.

Chemistry 25.3.

Presentation transcript:

Chain Reactions The Fission Reactor

Chain reactions One of the products of nuclear fission reactions are neutrons. But these are free to hit other nuclei of U-235 nearby, causing these to fission as well as releasing additional neutrons. As this process carries on, a huge amount energy is released. In fact, each generation of fission neutrons takes only a fraction of second to be produced. This is what happens in an uncontrolled chain reaction such as the nuclear bomb.

Chain reactions

Controlling chain reactions We can use control rods inserted into the uranium to slow the chain reaction down. These absorber rods contain atoms of Boron or Cadmium that can absorb the fission neutrons without undergoing a fission reaction themselves. These rods ensure that an average of one further fission occurs after every nucleus that splits. So, only one of the 2-3 neutrons produced in the fission of a nucleus will hit another U-235 nucleus. The other(s) will be absorbed by atoms in the rods.

Control rods

This drag and drop activity has a nice feature that allows the pupils to check how many correct answers they’ve given. In fact, if they click on the check button (top right) the text box at the top changes and shows the % of correct answers given. It also shades the correct boxes and they cannot be selected anymore, so that the pupil now has to worry only about the remaining labels!