Sign In Question: The red color of chili peppers is primarily due to the pigment: ((MCAER 2014))
📌 Other Options Explanations:
-Option A: Cohesion is the attraction between molecules of the same substance.
-Option C: Dispersion forces are weak intermolecular forces that arise due to temporary fluctuations in electron density.
-Option D: Capillary action is a phenomenon that occurs due to the combination of adhesion and cohesion.
🔑Key Points:
-The force of attraction between the same kind of molecules is called the force of cohesion.
-The force of attraction between different kinds of molecules is called the force of adhesion.
-The cohesion force of fine particles is important for the growth and strength of green granules.
-The former affects the size distribution of final granules formed, while the latter has a direct impact on the permeability of a packed granule bed.
-The cohesive forces between molecules down into a liquid are shared with all neighbouring atoms.
🛑Additional Information:
✏Viscosity:
-Viscosity is the resistance of a fluid (liquid or gas) to a change in shape or movement of neighbouring portions relative to one another.
-Viscosity is a measure of a fluid's resistance to flow. The SI unit of viscosity is poiseuille (PI).
-Its other units are newton-second per square meter (N s m-2) or pascal-second (Pa s.). The dimensional formula of viscosity is (ML-1T-1).
✏Surface tension:
-Surface tension is the tendency of fluid surfaces to shrink into the minimum surface area possible.
-Surface tension is typically measured in dynes/cm, the force in dynes is required to break a film of length 1 cm.
✏Adhesive force:
-The adhesion forces can be one of the results of electrostatic forces which are exerted on different substances.
-Adhesion is generally the force of attraction present between the water molecules and the walls of xylem vessels.
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