Physics for Scientists and Engineers: A Strategic Approach with Modern Physics (3rd Edition)

Published by Pearson
ISBN 10: 0321740904
ISBN 13: 978-0-32174-090-8

Chapter 42 - Nuclear Physics - Conceptual Questions - Page 1273: 8

Answer

Apple A might exhibit changes due to the radiation's ability to ionize its molecules, potentially driving chemical reactions, while apple B remains unaffected.

Work Step by Step

Apple A (irradiated by nuclear radiation): When apple A is exposed to nuclear radiation, the high-energy particles or electromagnetic waves from the radiation can ionize atoms and molecules in the apple. This ionization means that the radiation can remove electrons from atoms, creating ions and breaking chemical bonds in the apple's molecules. As a result, apple A might experience some changes in its molecular structure due to these interactions, potentially leading to different chemical reactions. The effects could include damage to cellular structures, changes in texture, or the creation of new, reactive molecules that were not present before. However, it is important to note that apple A will not become radioactive as a result of this exposure. The radiation does not make the apple itself a source of radiation; it merely ionizes some of the apple's molecules. Apple B (not irradiated): Since apple B has not been exposed to radiation, none of the processes that occurred in apple A will take place in apple B. Its molecular structure remains intact, and no unusual chemical reactions will occur. Differences Between Apples A and B: Chemical Reactions: Apple A may undergo chemical reactions due to ionization and bond-breaking caused by the radiation, which apple B will not experience. Molecular Changes: Some of the molecules in apple A might have been altered, whereas the molecules in apple B remain unchanged. Radiation: Apple A will not become radioactive, and neither will apple B, since only apple A was exposed to ionizing radiation but not enough to induce radioactivity.
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