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Chemistry

9th Edition
Steven S. Zumdahl
ISBN: 9781133611097

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BuyFindarrow_forward

Chemistry

9th Edition
Steven S. Zumdahl
ISBN: 9781133611097
Textbook Problem

Define fission and fusion. How does the energy associated with fission or fusion processes compare to the energy changes associated with chemical reactions? Fusion processes are more likely to occur for lighter elements, whereas fission processes are more likely to occur for heavier elements. Why? (Hint: Refer to Fig. 18-10.) The major stumbling block for turning fusion reactions into a feasible source of power is the high temperature required to initiate a fusion reaction. Why are elevated temperatures necessary to initiate fusion reactions but not fission reactions?

Interpretation Introduction

Interpretation: The definition of fusion and fission is to be stated. The comparison between energy associated with fusion or fission process and chemical reactions is to be done. The reason for fusion processes to be suitable for lighter elements and fission process for heavier elements is to be stated. The reason for the requirement of elevated temperatures to initiate fusion reactions but not fission reaction is to be stated.

Concept introduction: In nuclear reactions, tremendous amount of energy is released. Any substance will melt down at such high temperature. Fusion processes are more likely to occur for lighter elements whereas, fission process are more likely to occur for heavier elements.

To determine: The definition of fusion and fission, the comparison between energy associated with fusion or fission process and chemical reactions, the reason for fusion processes to be suitable for lighter elements and fission process for heavier elements and requirement of elevated temperatures to initiate fusion reactions but not fission reaction.

Explanation

Explanation

Due to large binding energy involved in holding the nucleus together, energy associated with fission and fusion process is very high in comparison to the chemical reactions.

When two light nuclei combine to form a more stable heavier nucleus, then the process is known as fusion. When a heavy nucleus split into two nuclei with smaller mass number, then the process is known as fission.

The energy associated with fission and fusion process is very high in comparison to the chemical reactions due to large binding energy involved in holding the nucleus together.

Explanation

For increasing the binding energy, fusion processes is suitable for lighter elements and fission process for heavier elements.

The nuclear stability is related to binding energy...

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