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Raoult's Law Using Partial Pressures

Raoult's law is a law of thermodynamics that states that the partial vapor pressure of each component of an ideal mixture of liquids is equal to the vapor pressure of the pure component multiplied by its mole fraction in the mixture.

The vapor pressure of solution equals the sum of the partial pressure of species A and B.

Formula

QuantityVariable[Subscript["P", "Total"], "Pressure"] == QuantityVariable[Subscript["P", "A"], "Pressure"] + QuantityVariable[Subscript["P", "B"], "Pressure"]

symbol description physical quantity
PTotal vapor pressure of solution "Pressure"
PA
partial pressure of species A
 "Pressure"
PB
partial pressure of species B
 "Pressure"

Forms

Examples

Get the resource:

In[1]:=
ResourceObject["Raoult's Law Using Partial Pressures"]
Out[1]=

Get the formula:

In[2]:=
FormulaData[ResourceObject["Raoult's Law Using Partial Pressures"]]
Out[2]=

Use some values:

In[3]:=
FormulaData[ ResourceObject[ "Raoult's Law Using Partial Pressures"], {QuantityVariable[ \!\(\*SubscriptBox[\("P"\), \("Total"\)]\),"Pressure"] -> Quantity[19.72`, "Kilopascals"]}]
Out[3]=

Source Metadata

  • Creator:
  • Date: 1887

Publisher Information