Thermo Question on isothermal expansion

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SUMMARY

The discussion centers on calculating the new pressure of a saturated water liquid-vapor mixture undergoing isothermal expansion at 200°C, with an initial volume of 0.03 m³ and pressure of 15.54 Bars. The mixture's volume doubles, prompting the need for a new pressure calculation. Participants suggest utilizing thermodynamic property tables to determine specific volume, which is crucial for finding the new pressure after expansion.

PREREQUISITES
  • Understanding of thermodynamic properties of fluids
  • Familiarity with isothermal processes
  • Knowledge of pressure-volume relationships in phase changes
  • Ability to interpret thermodynamic property tables
NEXT STEPS
  • Research how to use thermodynamic property tables for water at various temperatures and pressures
  • Learn about the principles of isothermal expansion in thermodynamics
  • Study the relationship between specific volume and pressure in saturated mixtures
  • Explore the equations governing phase changes in fluids
USEFUL FOR

Students studying thermodynamics, engineers working with fluid systems, and anyone involved in calculating properties of saturated mixtures during phase changes.

danield
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Homework Statement


I have a mixture of saturared water liquid vapor mixture at 200 c, volume = .03 m^3 at 15.54 Bars... the mixture undergoes an isothermal expansion and the volume doubles, what is the new pressure?

mtotal = .301 kg

Homework Equations


this is my prob not sure which equation to use


The Attempt at a Solution



I am not sure which equation to use, and none of the tries i have made have worked... i assumed it as a linear equation and it didnt work...
 
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Do you have tables of thermodynamic properties of fluids at different temperatures and pressures?

If so you can calculate the specific volume and use that to easily find the new pressure.
 

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