Surface Energy • Chemistry • Texture • Roughness 0.0 / 5 ? BiologyGeneticsUniversityAll boards Created by: Former MemberCreated on: 15-05-17 12:29 What is cohesive force in regards to liquids on the surface? It is the attraction between the LIQUID MOLECULES. 1 of 8 What is adhesive force in regards to liquids on the surface? It is the attraction between the LIQUID and the SUBSTRATE ATOMS. 2 of 8 If the cohesive force ia greater than the adhesive force what is the behavior of a liquid on a surface? The drop of liquid on a surface remain in the form of a droplet 3 of 8 If the the adhesive force is greater than the cohesive force what is the behavior of a liquid on a surface? The drop of liquid on a surface would spread out. 4 of 8 What is the contact angle? The angle between the solid–liquid interface. 5 of 8 What are the two unknown parameters in Young's equation. The surface energy and the solid–liquid interfacial tension. 6 of 8 What happens if the contact angle is equal to zero degrees. Complete wetting of the surface. 7 of 8 What happens if the contact angle is equal to 180 degrees. Non-wetting of the surface. 8 of 8
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