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Freon-12 (CCl2F2) is banned as a refrigerant because it is harmful to the ozone. Sketch the phase diagram of CCl2F2 using the physical constants below   Normal boiling point = -29.8 °C Normal melting point = -158 °C Critical temperature = 112 °C Critical pressure = 40.8 atm Triple point (2.42 ×10-6 atm, -157 °C)

Freon-12 (CCl2F2) is banned as a refrigerant because it is harmful to the ozone. Sketch the phase diagram of CCl2F2 using the physical constants below   Normal boiling point = -29.8 °C Normal melting point = -158 °C Critical temperature = 112 °C Critical pressure = 40.8 atm Triple point (2.42 ×10-6 atm, -157 °C)

Chemistry: Principles and Reactions
Chemistry: Principles and Reactions
8th Edition
ISBN:9781305079373
Author:William L. Masterton, Cecile N. Hurley
Publisher:William L. Masterton, Cecile N. Hurley
Chapter9: Liquids And Solids
Section: Chapter Questions
Problem 17QAP
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  1. Freon-12 (CCl2F2) is banned as a refrigerant because it is harmful to the ozone.
    1. Sketch the phase diagram of CCl2F2 using the physical constants below

 

Normal boiling point = -29.8 °C

Normal melting point = -158 °C

Critical temperature = 112 °C

Critical pressure = 40.8 atm

Triple point (2.42 ×10-6 atm, -157 °C)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

  1. Calculate the heat required to bring 10.0 g CCl2F2 from -29.8 °C as a liquid to the gas phase at 10.0 °C. (molar mass = 120.91 g/mol)

 

Cs (gas) = 0.074 kJ/mol·K

ΔHvap = 20.1 kJ/mol

ΔHfus = 4.14 kJ/mol

 

 

 

 

 

 

 

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