We have 10 moles of CH4 during an expansion from an initial volume of 5.0 L to a final volume of 10.0 L. During expansion, the pressure of CH4 varies from an initial value of 50 atm to a final pressure of 25 atm. When the pressure reaches 25 atm, the expansion stops due to the fact that the gas enters into mechanical equilibrium with the external environment, whose pressure is also maintained at 25 atm. The process involves high pressures, CH4 cannot be considered as an ideal gas.  Would it be possible, through an isothermal compression, to liquefy CH4 from its initial state of 5.0L and the pressure of 50 atm  like described above? Critical CH4 temperature: – 82.5 °C

Chemistry: The Molecular Science
5th Edition
ISBN:9781285199047
Author:John W. Moore, Conrad L. Stanitski
Publisher:John W. Moore, Conrad L. Stanitski
Chapter8: Properties Of Gases
Section: Chapter Questions
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We have 10 moles of CH4 during an expansion from an initial volume of 5.0 L to a final volume of 10.0 L. During expansion, the pressure of CH4 varies from an initial value of 50 atm to a final pressure of 25 atm. When the pressure reaches 25 atm, the expansion stops due to the fact that the gas enters into mechanical equilibrium with the external environment, whose pressure is also maintained at 25 atm. The process involves high pressures, CH4 cannot be considered as an ideal gas.  Would it be possible, through an isothermal compression, to liquefy CH4 from its initial state of 5.0L and the pressure of 50 atm  like described above?

Critical CH4 temperature: – 82.5 °C

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