Chemistry: The Molecular Nature of Matter and Change 7th Edition

Published by McGraw-Hill Education
ISBN 10: 007351117X
ISBN 13: 978-0-07351-117-7

Chapter 24 - Problems: 24.88

Answer

See explanation below.

Work Step by Step

The water slows down the neutrons and results in a fission reaction. Heavy water is a better moderator as it does not absorb neutrons as much as the light water. Hence more neutrons are available to initiate the fission process. But D2O does not occur naturally in high amounts, so production of D2O adds to the cost of a heavy water reactor. If heavy water absorbs a neutron, it becomes the isotope tritium, which is radioactive in nature.
Update this answer!

You can help us out by revising, improving and updating this answer.

Update this answer

After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.