Surface Pressure using Wilhelmy-Plate Method Solution

STEP 0: Pre-Calculation Summary
Formula Used
Surface Pressure of Thin Film = -(Change in Force/(2* (Thickness of Plate+Weight of Plate)))
Π = -(ΔF/(2* (t+Wplate)))
This formula uses 4 Variables
Variables Used
Surface Pressure of Thin Film - (Measured in Pascal) - 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.
Change in Force - (Measured in Newton) - The Change in Force is the difference between the initial and final force exerted on an object.
Thickness of Plate - (Measured in Meter) - Thickness of Plate is defined as the thickness of plate (usually the lowest dimension of the plate) under consideration.
Weight of Plate - (Measured in Kilogram) - The Weight of Plate is defined as the force of attraction exerted on the plate by gravity.
STEP 1: Convert Input(s) to Base Unit
Change in Force: -0.015 Newton --> -0.015 Newton No Conversion Required
Thickness of Plate: 5000 Millimeter --> 5 Meter (Check conversion here)
Weight of Plate: 16.9 Gram --> 0.0169 Kilogram (Check conversion here)
STEP 2: Evaluate Formula
Substituting Input Values in Formula
Π = -(ΔF/(2* (t+Wplate))) --> -((-0.015)/(2* (5+0.0169)))
Evaluating ... ...
Π = 0.00149494707887341
STEP 3: Convert Result to Output's Unit
0.00149494707887341 Pascal --> No Conversion Required
FINAL ANSWER
0.00149494707887341 0.001495 Pascal <-- Surface Pressure of Thin Film
(Calculation completed in 00.004 seconds)

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Amity Institute Of Applied Sciences (AIAS, Amity University), Noida, India
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5 Wilhelmy-Plate Method Calculators

Force given Surface Tension using Wilhelmy-Plate Method
Go Force = (Density of Plate*[g]*(Length of Plate*Width of Full Size Bearing Plate*Thickness of Plate))+(2*Surface Tension of Fluid*(Thickness of Plate+Width of Full Size Bearing Plate)*(cos(Contact Angle)))-(Density of Fluid*[g]*Thickness of Plate*Width of Full Size Bearing Plate*Depth of Plate)
Force for Rectangular Plate using Wilhelmy-Plate Method
Go Force = Weight of Plate+(Surface Force*((Surface Tension of Fluid*Perimeter of Plate)-Upward Drift))
Total Weight of Plate using Wilhelmy-Plate Method
Go Total Weight of Solid Surface = Weight of Plate+Surface Tension of Fluid*(Perimeter)-Upward Drift
Total Weight of Ring using Ring-Detachment Method
Go Total Weight of Solid Surface = Weight of Ring+(4*pi*Radius of Ring*Surface Tension of Fluid)
Surface Pressure using Wilhelmy-Plate Method
Go Surface Pressure of Thin Film = -(Change in Force/(2* (Thickness of Plate+Weight of Plate)))

17 Important Formulas on Surface Tension Calculators

Force given Surface Tension using Wilhelmy-Plate Method
Go Force = (Density of Plate*[g]*(Length of Plate*Width of Full Size Bearing Plate*Thickness of Plate))+(2*Surface Tension of Fluid*(Thickness of Plate+Width of Full Size Bearing Plate)*(cos(Contact Angle)))-(Density of Fluid*[g]*Thickness of Plate*Width of Full Size Bearing Plate*Depth of Plate)
Surface Tension given Contact Angle
Go Surface Tension of Fluid = (2*Radius of Curvature*Density of Fluid*[g]*Height of Capillary Rise/Fall)*(1/cos(Contact Angle))
Surface Tension given Molecular Weight
Go Surface Tension of Fluid = [EOTVOS_C]*(Critical Temperature-Temperature-6)/(Molecular Weight/Density of Liquid)^(2/3)
Surface Tension of Pure Water
Go Surface Tension of Pure Water = 235.8*(1-(Temperature/Critical Temperature))^(1.256)*(1-(0.625*(1-(Temperature/Critical Temperature))))
Surface Tension given Critical Temperature
Go Surface Tension of Fluid given Critical Temp = Constant for each Liquid*(1-(Temperature/Critical Temperature))^(Empirical Factor)
Surface Tension given Correction Factor
Go Surface Tension of Fluid = (Drop Weight*[g])/(2*pi*Capillary Radius*Correction Factor)
Surface Tension given Molar Volume
Go Surface Tension of Fluid given Molar Volume = [EOTVOS_C]*(Critical Temperature-Temperature)/(Molar Volume)^(2/3)
Height of Magnitude of Capillary Rise
Go Height of Capillary Rise/Fall = Surface Tension of Fluid/((1/2)*(Radius of Tubing*Density of Fluid*[g]))
Surface Tension Force given Density of Fluid
Go Surface Tension of Fluid = (1/2)*(Radius of Tubing*Density of Fluid*[g]*Height of Capillary Rise/Fall)
Total Weight of Plate using Wilhelmy-Plate Method
Go Total Weight of Solid Surface = Weight of Plate+Surface Tension of Fluid*(Perimeter)-Upward Drift
Total Weight of Ring using Ring-Detachment Method
Go Total Weight of Solid Surface = Weight of Ring+(4*pi*Radius of Ring*Surface Tension of Fluid)
Parachor given Surface Tension
Go Parachor = (Molar Mass/(Density of Liquid-Density of Vapor))*(Surface Tension of Fluid)^(1/4)
Surface Pressure using Wilhelmy-Plate Method
Go Surface Pressure of Thin Film = -(Change in Force/(2* (Thickness of Plate+Weight of Plate)))
Surface Tension given Temperature
Go Surface Tension of Fluid given Temperature = 75.69-(0.1413*Temperature)-(0.0002985*(Temperature)^2)
Surface Pressure
Go Surface Pressure of Thin Film = Surface Tension of Clean Water Surface-Surface Tension of Fluid
Work of Cohesion given Surface Tension
Go Work of Cohesion = 2*Surface Tension of Fluid*[Avaga-no]^(1/3)*(Molar Volume)^(2/3)
Surface Tension for very Thin Plate using Wilhelmy-Plate Method
Go Surface Tension of Fluid = Force on very Thin Plate/(2*Weight of Plate)

Surface Pressure using Wilhelmy-Plate Method Formula

Surface Pressure of Thin Film = -(Change in Force/(2* (Thickness of Plate+Weight of Plate)))
Π = -(ΔF/(2* (t+Wplate)))

What is Wilhelmy-Plate Method?

The Wilhelmy plate method for measuring interfacial tension uses a Wilhelmy plate that is pulled upward or pushed downward through an interface. In this method, the plate is oriented perpendicular to the interface, and the force exerted on it is measured.

How to Calculate Surface Pressure using Wilhelmy-Plate Method?

Surface Pressure using Wilhelmy-Plate Method calculator uses Surface Pressure of Thin Film = -(Change in Force/(2* (Thickness of Plate+Weight of Plate))) to calculate the Surface Pressure of Thin Film, The Surface Pressure using Wilhelmy-Plate Method formula is determined by measuring the change in force for a stationary plate between a clean surface and the same surface with a monolayer present. Surface Pressure of Thin Film is denoted by Π symbol.

How to calculate Surface Pressure using Wilhelmy-Plate Method using this online calculator? To use this online calculator for Surface Pressure using Wilhelmy-Plate Method, enter Change in Force (ΔF), Thickness of Plate (t) & Weight of Plate (Wplate) and hit the calculate button. Here is how the Surface Pressure using Wilhelmy-Plate Method calculation can be explained with given input values -> 0.001495 = -((-0.015)/(2* (5+0.0169))).

FAQ

What is Surface Pressure using Wilhelmy-Plate Method?
The Surface Pressure using Wilhelmy-Plate Method formula is determined by measuring the change in force for a stationary plate between a clean surface and the same surface with a monolayer present and is represented as Π = -(ΔF/(2* (t+Wplate))) or Surface Pressure of Thin Film = -(Change in Force/(2* (Thickness of Plate+Weight of Plate))). The Change in Force is the difference between the initial and final force exerted on an object, Thickness of Plate is defined as the thickness of plate (usually the lowest dimension of the plate) under consideration & The Weight of Plate is defined as the force of attraction exerted on the plate by gravity.
How to calculate Surface Pressure using Wilhelmy-Plate Method?
The Surface Pressure using Wilhelmy-Plate Method formula is determined by measuring the change in force for a stationary plate between a clean surface and the same surface with a monolayer present is calculated using Surface Pressure of Thin Film = -(Change in Force/(2* (Thickness of Plate+Weight of Plate))). To calculate Surface Pressure using Wilhelmy-Plate Method, you need Change in Force (ΔF), Thickness of Plate (t) & Weight of Plate (Wplate). With our tool, you need to enter the respective value for Change in Force, Thickness of Plate & Weight of Plate and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.
How many ways are there to calculate Surface Pressure of Thin Film?
In this formula, Surface Pressure of Thin Film uses Change in Force, Thickness of Plate & Weight of Plate. We can use 1 other way(s) to calculate the same, which is/are as follows -
  • Surface Pressure of Thin Film = Surface Tension of Clean Water Surface-Surface Tension of Fluid
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