Physics Technology Update (4th Edition)

Published by Pearson
ISBN 10: 0-32190-308-0
ISBN 13: 978-0-32190-308-2

Chapter 17 - Phases and Phase Changes - Problems and Conceptual Exercises - Page 606: 55

Answer

(a) First the solid carbon dioxide changes to liquid and then to gas. (b) First the solid carbon dioxide changes to liquid and then this liquid carbon dioxide changes to gas.

Work Step by Step

(a) We know that the solid first changes into liquid and then the liquid turns to gas when the pressure is kept constant and the temperature is increased. (b) We know that if the temperature of the system is kept constant first below the freezing point and the pressure is decreased then the solid $CO_2$ is converted to liquid and then to gas.
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.