The cohesive fluid property whereby molecules of the same substance attract each other is termed___________________?
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Answer: B. cohesion
Explanation
Cohesion is the intermolecular force that causes molecules of the same substance to stick and attract each other. This fundamental fluid property explains why water molecules bind together to form droplets and resist separation. Strong cohesive forces within a liquid contribute significantly to surface tension and resistance to tensile stress. Intermolecular forces arise from electrostatic interactions between polarized molecules within liquid and solid substances. Cohesion acts exclusively between identical molecules, whereas adhesion involves attraction between different types of molecules. Fluid mechanics relies on these molecular properties to analyze boundary layer behavior and capillary action phenomena.
Adhesion describes the attractive force operating between dissimilar molecules, such as liquid sticking to solid surfaces. Viscosity measures a fluid's internal resistance to gradual deformation by shear or tensile stress forces. Compressibility quantifies how much a given volume of fluid decreases when subjected to external compressive pressure.
- Subject
- Engineering
- Category
- Mechanical Engineering
- Topic
- —
- Difficulty
- medium
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