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The Surface Pressure of Thin Film is the difference in interfacial tension between a clean interface and an interface in the presence of an emulsifier. Check FAQs
Π=[BoltZ]⋅TA-Ao
Π - Surface Pressure of Thin Film?T - Temperature?A - Area of Ideal Film?Ao - Co-Area of Ideal Film?[BoltZ] - Boltzmann constant?

Surface Pressure using Co-Area Example

With values
With units
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Here is how the Surface Pressure using Co-Area equation looks like with Values.

Here is how the Surface Pressure using Co-Area equation looks like with Units.

Here is how the Surface Pressure using Co-Area equation looks like.

0.0033Edit=1.4E-23⋅45Edit20Edit-1.2Edit
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HomeIcon Home » Category Chemistry » Category Surface Chemistry » Category Capillarity and Surface Forces in Liquids (Curved Surfaces) » fx Surface Pressure using Co-Area

Surface Pressure using Co-Area Solution

Follow our step by step solution on how to calculate Surface Pressure using Co-Area?

FIRST Step Consider the formula
Π=[BoltZ]⋅TA-Ao
Next Step Substitute values of Variables
∴ Π=[BoltZ]⋅45K20A²-1.2A²
Next Step Substitute values of Constants
∴ Π=1.4E-23J/K⋅45K20A²-1.2A²
Next Step Convert Units
∴ Π=1.4E-23J/K⋅45K2E-19m²-1.2E-20m²
Next Step Prepare to Evaluate
∴ Π=1.4E-23⋅452E-19-1.2E-20
Next Step Evaluate
∴Π=0.00330474379787234Pa
LAST Step Rounding Answer
∴Π=0.0033Pa

Surface Pressure using Co-Area Formula Elements

Variables
Constants
Surface Pressure of Thin Film
The Surface Pressure of Thin Film is the difference in interfacial tension between a clean interface and an interface in the presence of an emulsifier.
Symbol: Π
Measurement: PressureUnit: Pa
Note: Value should be greater than 0.
Formulas to find Surface Pressure of Thin FilmOpen Variable
Temperature
Temperature is the degree or intensity of heat present in a substance or object.
Symbol: T
Measurement: TemperatureUnit: K
Note: Value can be positive or negative.
Formulas to find TemperatureOpen Variable
Area of Ideal Film
Area of Ideal Film measures the size of an ideal film using length measurements in two dimensions.
Symbol: A
Measurement: AreaUnit: A²
Note: Value can be positive or negative.
Formulas to find Area of Ideal FilmOpen Variable
Co-Area of Ideal Film
Co-Area of Ideal Film is defined as the amount of space occupied by the cross-sectional surface of an ideal film.
Symbol: Ao
Measurement: AreaUnit: A²
Note: Value can be positive or negative.
Formulas to find Co-Area of Ideal FilmOpen Variable
Boltzmann constant
Boltzmann constant relates the average kinetic energy of particles in a gas with the temperature of the gas and is a fundamental constant in statistical mechanics and thermodynamics.
Symbol: [BoltZ]
Value: 1.38064852E-23 J/K

Other Formulas to find Surface Pressure of Thin Film

​Go Surface Pressure
Π=γo-γ
​Go Surface Pressure for Ideal Gas Film
Π=[BoltZ]⋅TAthin film

How to Evaluate Surface Pressure using Co-Area?

Surface Pressure using Co-Area evaluator uses Surface Pressure of Thin Film = ([BoltZ]*Temperature)/(Area of Ideal Film-Co-Area of Ideal Film) to evaluate the Surface Pressure of Thin Film, The Surface Pressure using Co-Area formula is defined as the difference in interfacial tension between a clean interface and an interface in the presence of emulsifier. Surface Pressure of Thin Film is denoted by Π symbol.

How to evaluate Surface Pressure using Co-Area using this online evaluator? To use this online evaluator for Surface Pressure using Co-Area, enter Temperature (T), Area of Ideal Film (A) & Co-Area of Ideal Film (Ao) and hit the calculate button.

FAQs on Surface Pressure using Co-Area

What is the formula to find Surface Pressure using Co-Area?
The formula of Surface Pressure using Co-Area is expressed as Surface Pressure of Thin Film = ([BoltZ]*Temperature)/(Area of Ideal Film-Co-Area of Ideal Film). Here is an example- 0.006242 = ([BoltZ]*45)/(2E-19-1.2E-20).
How to calculate Surface Pressure using Co-Area?
With Temperature (T), Area of Ideal Film (A) & Co-Area of Ideal Film (Ao) we can find Surface Pressure using Co-Area using the formula - Surface Pressure of Thin Film = ([BoltZ]*Temperature)/(Area of Ideal Film-Co-Area of Ideal Film). This formula also uses Boltzmann constant .
What are the other ways to Calculate Surface Pressure of Thin Film?
Here are the different ways to Calculate Surface Pressure of Thin Film-
  • Surface Pressure of Thin Film=Surface Tension of Clean Water Surface-Surface Tension of FluidOpenImg
  • Surface Pressure of Thin Film=([BoltZ]*Temperature)/Area of Thin FilmOpenImg
Can the Surface Pressure using Co-Area be negative?
No, the Surface Pressure using Co-Area, measured in Pressure cannot be negative.
Which unit is used to measure Surface Pressure using Co-Area?
Surface Pressure using Co-Area is usually measured using the Pascal[Pa] for Pressure. Kilopascal[Pa], Bar[Pa], Pound Per Square Inch[Pa] are the few other units in which Surface Pressure using Co-Area can be measured.
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