Surface Tension :: essays research papers fc

move up TensionMy problem was to find come in how to test or measure airfoil tautness. Ithink the precedent of some of the force in issue tension is cohesion andgravity. Surface Tension is the condition existing at the free muster up of aliquid, resembling the properties of an elastic skin under tension. The tensionis the closure of intermolecular forces exerting an maladjusted inward pull onthe individual surface molecules this is reflected in the appreciablecurvature at those edges where the liquid is in contact with the w all in all of avessel. Because of this property, certain insects can stand on the surface ofwater. A razor blade can also be supported by the surface tension of water. Therazor blade is not floating if pushed by the surface, it sinks throughthe water. More specifically, the tension is the force per unit length of any honest line on the liquid surface that the surface storeys on the confrontationsides of the line exert upon each other. The tendency o f any liquid surface isto become as small as possible as a result of this tension, as in the case ofmercury, which forms an almost round nut case when a small quantity is determined on a flat surface. The near-perfect spherical shape of a soap bubble, which isthe result of the distribution of tension on the thin film of soap, is anotherexample of this force surface tension alone can support a needle placedhorizontally on a water surface.Surface tension depends principally upon the forces traceion between theparticles within the given liquid and also upon the gas, solid, or liquid incontact with it. The molecules in a drop of water, for example, attract eachother weakly. Water molecules well inside the drop may be thought of as beingattracted equally in all directions by the surrounding molecules. However ifsurface molecules could be displaced slightly outward-bound from the surface, theywould be attracted back by the near by molecules. The energy trusty forthe phenomenon of su rface tension may be thought of as approximately equilivantto the work or energy required to remove the surface layer of molecules in aunit area. In comparison, organic liquids, such as benzene and alcohols, havelower surface tensions, whereas mercury has a higher(prenominal) surface tension . Anincrease in temperature lowers the net force of drawing card among molecules andhence decreases surface tension.Surface tension is also viewed as the result of forces acting in theplane of the surface and tending to minimize its area. On this basis.