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Recently Added Formulas in Chemistry
·
Chemical Reactions
·
Raoult's Law
·
Cations and Anions
·
Hess' Law
·
pH and pOH
Additional Formulas
·
Ideal Gas Law
·
Henry's Law
·
Hess' Law
·
Raoult's Law
·
Chemical Formulas
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Chemical Reactions
·
Strength of Common Acids
·
Strength of Common Bases
·
Cations and Anions
·
Molar Enthalpy
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Formulas in Chemistry
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Chemistry (Basics)
> Raoult's Law
Raoult's Law
Raoult's law is given by:
Where:
p
i
: pressure of component i
x
i
: mole fraction in the solution
: vapor pressure of the pure substance i
In a solution with two liquids A and B, if no gas are present, the total vapor pressure is given by:
P
tot
= P
A
+ P
B
Where:
P
A
: vapor pressure of liquid A
P
B
: vapor pressure of liquid B
For an ideal solution of liquids A and B, which obeys Raoult's law over the full range of composition. The total pressure is given by:
Which is equal to:
or
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