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Water Vapor Pressure and Boiling Point Equations Formulas Calculator

Science - Physics - Chemistry - Thermodynamics - Steam


Antoine Equation.

Antoine equation for saturated vapor pressure

Solve for saturated vapor pressure.

Antoine equation arranged to solve for saturated vapor pressure

Notes:
  • This calculator uses a fitted equation to calculate the saturated vapor pressure. Therefore, the calculated values should be considered approximate. The equation is has a valid range of 1°C to 374°C and 4.89 mmHg to 162991 mmHg.
  • The constants for the Antoine formula are located below. This calculator uses the first set of constants for temperatures below 100° Celsius. The equation requires temperature to be in Celsius and pressure in mmHg. This calculator automatically makes the conversion.
  • Water will boil when the atmospheric pressure is less than the vapor pressure for a given temperature.

Inputs:

temperature



Conversions:

temperature
=0
=0
celsius


Solution:

water vapor pressure
=NOT CALCULATED 


Other Units:



Constants Table

Water Temperature Range A B C
1°C ≤ T ≤ 100°C 8.07131 1730.63 233.426
99°C ≤ T ≤ 374°C 8.14019 1810.94 244.485


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Select an equation to solve for a different unknown

Antoine Equation
Antoine equation arranged to solve for saturated vapor pressure Solve for saturated vapor pressure.
Antoine equation arranged to solve for temperature Solve for temperature.
Rich internet application RIA to solve for water vapor pressure Internet application to solve for the vapor pressure of water.
This includes a line graph of temperature versus pressure.
Android application to solve for water vapor pressure

Get this calculator on your Android smart phone or tablet.
Scan the QR code below or download from the Android Market.

qr code linking to the water vapor pressure  calculator in the Adroid Market



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