The experimental observations for the determination of contact angle is presented below. Calculate the contact angle for every observation  Plot Immersion depth (X-axis) versus Contact angle (Y-axis) in MS-excel and write conclusions.  Analyse the results and write conclusions.                      Given: Circumference of slide (L)  is 54 mm and surface tension (σ) at 20 oC is 75.85 mN/m (milli Newton per metre). Data set # 3: SID: 170635 to 171236 Immersion Depth (mm) Force (mN) 0 3.3 1 3.1 2 2.9 3 2.6 4 2.3 5 2

Introduction to Chemical Engineering Thermodynamics
8th Edition
ISBN:9781259696527
Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Publisher:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
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  1. The experimental observations for the determination of contact angle is presented below.
  • Calculate the contact angle for every observation 
  • Plot Immersion depth (X-axis) versus Contact angle (Y-axis) in MS-excel and write conclusions. 
  • Analyse the results and write conclusions.                     

Given: Circumference of slide (L)  is 54 mm and surface tension (σ) at 20 oC is 75.85 mN/m (milli Newton per metre).

Data set # 3:

SID: 170635 to 171236

Immersion Depth (mm)

Force (mN)

0

3.3

1

3.1

2

2.9

3

2.6

4

2.3

5

2

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