Based on the phase diagrams of water and carbon dioxide, answer the following questions and justify your answers: 1. You have ice at 263 K (-10.0 °C) and 1.0 atm. What could you do to make the ice sublime? 2. A sample of dry ice (solid CO2) is cooled to 173 K (-100.0 oC), and is set on a table at room temperature (298 K; 25 oC). At what temperature is the rate of sublimation and deposition the same (assume that pressure is held constant at 1 atm)
Based on the phase diagrams of water and carbon dioxide, answer the following questions and justify your answers: 1. You have ice at 263 K (-10.0 °C) and 1.0 atm. What could you do to make the ice sublime? 2. A sample of dry ice (solid CO2) is cooled to 173 K (-100.0 oC), and is set on a table at room temperature (298 K; 25 oC). At what temperature is the rate of sublimation and deposition the same (assume that pressure is held constant at 1 atm)
Introduction to Chemical Engineering Thermodynamics
8th Edition
ISBN:9781259696527
Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Publisher:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Chapter1: Introduction
Section: Chapter Questions
Problem 1.1P
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Based on the phase diagrams of water and carbon dioxide, answer the following questions and justify your answers:
1. You have ice at 263 K (-10.0 °C) and 1.0 atm. What could you do to make the ice sublime?
2. A sample of dry ice (solid CO2) is cooled to 173 K (-100.0 oC), and is set on a table at room temperature (298 K; 25 oC). At what temperature is the rate of sublimation and deposition the same (assume that pressure is held constant at 1 atm)?
Transcribed Image Text:218
73
Liquid
Liquid
Solid
Solid
5.2
Gas
Gas
1
0.006
273 273.2
373
647
197.5
216.6
304.25
Temperature (K)
Temperature (K)
Figure 9:
Phase diagram of water
Figure 10: Phase diagram of CO2
Pressure (atm)
Pressure (atm)
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