General Chemistry 10th Edition

Published by Cengage Learning
ISBN 10: 1-28505-137-8
ISBN 13: 978-1-28505-137-6

Chapter 11 - States of Matter; Liquids and Solids - Questions and Problems - Page 485: 11.137

Answer

Please see the work below.

Work Step by Step

We know that a. At room temperature , carbon dioxide is below critical temperature, hence it will be present in two different phases that is liquid and gas. b. The pressure of carbon dioxide would remain constant at the vapor pressure at $20C^{\circ}$ for the gas.
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