derive an ex between surface energy and surface tention for a thin rectangular soap film? Share with your friends Share 0 Shobhit Mittal answered this Dear Student, let take a thin soap film on a frame having the movable wire of length l at one side.now if we move the wire by the distance dx the workdone is stored in the potential energy of the surface that is known as surface energy.dW=F.dxF should be equal to the force applied by the surface tension of film that F=SldW=Sl.dxl.dx is the increase in area of film that is dA∫dW=∫SdAU=SAhence surface energy of the film is equal to the surface tension into area of film.Regards 0 View Full Answer
