Pressure & Temperature Effects on Water State: 25 bar @ 200°C

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SUMMARY

At a pressure of 25 bar and a temperature of 200°C, water remains in a liquid state. The boiling point of water at this pressure is approximately 224°C, indicating that the temperature of 200°C is below the boiling point. The Antoine equation, applicable in the range of 1°C to 374°C and 4.89 mmHg to 162991 mmHg, can be utilized to calculate these properties accurately.

PREREQUISITES
  • Understanding of the Antoine equation for vapor pressure calculations
  • Knowledge of phase changes in substances under varying pressure and temperature
  • Familiarity with the properties of water at different states
  • Basic thermodynamics principles related to boiling points
NEXT STEPS
  • Research the Antoine equation and its applications in thermodynamics
  • Explore the phase diagram of water to understand state changes under pressure
  • Learn about the properties of water at high pressures and temperatures
  • Investigate other equations of state for different substances
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Students and professionals in chemistry, chemical engineering, and thermodynamics, as well as anyone interested in the behavior of water under varying pressure and temperature conditions.

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What would the state of water be at if the pressure is 25 bar and the temp is 200 degrees Celsius?
 
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You can use a version of Antoine equation, which is valid for high pressures and temperatures. For example use this one, which is valid in the range of 1°C to 374°C and 4.89 mmHg to 162991 mmHg.

Calculate a boiling temperature at 25 bar. It is around 224°C. It is more than 200, so we still have water at 200. Not steam.
 

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