Determination of Variables Affecting Surface Tension Using Simple Bubble Method Essay Example

Determination of Variables Affecting Surface Tension Using Simple Bubble Method Essay Example Determination of Variables Affecting Surface Tension Using Simple Bubble Method Essay Determination of Variables Affecting Surface Tension Using Simple Bubble Method Essay 2002. Surface Tension [online]. Available at: http://mysite. du. edu/~jcalvert/phys/surftens. htm [accessed 05 July 2008]. Cheak Ching Hui, et al. , 2004. Bubbles and Surface Tension [online]. Available at: http://www1. moe. edu. sg/[emailprotected]/quest/winners/secondary/raffles_girls_sch_nc/Folders/SurfaceTension1. htm [accessed 17 June 2008] Haber, Howard. Surface Tension [online]. Available at: http://scipp. ucsc. edu/~haber/ph5B/bubble. pdf [accessed 17 June 2008] KRUSS. Theory Behind the Bubble Pressure Method [online]. Available at: kruss. info/index. php? content=http%3A//www. kruss. nfo/techniques/bubble_pressure_e. html [accessed 15 July 2008] Laidler, K. J. Meiser, J. H. , 1999. Physical Chemistry. 3rd ed. Boston: Houghton Mifflin Company. Probstein, R. F. , 1994. Physicochemical Hydrodynamics: an Introduction. 2nd ed. John Wiley Sons, Inc. Roman, F. L. Velasco, S. , Surface Tension [online]. Available at: http://www2. physics. umd. edu/~mfuhrer/course/spr02/AJP/AJP00917. pdf [accessed 09 July 2008] APPENDICES Measurement of Tube Radius Tube No. Dinside (mm)Doutside (mm)average (mm)average(m) 13. 343. 543. 440. 00344 23. 94. 44. 50. 00415 34. 7254. 860. 00486 45. 445. 95. 670. 00567 56. 386. 96. 640. 00664 Maximum Pressure Difference Conc100%75%50%25%5% cm H2O? P (Pa)cm H2O? P (Pa)cm H2O? P (Pa)cm H2O? P (Pa)cm H2O? P (Pa) Tube 11. 1107. 911. 1107. 911. 15112. 8151. 15112. 8151. 2117. 72 Tube 20. 8583. 3850. 988. 290. 988. 290. 9593. 195198. 1 Tube 30. 878. 480. 878. 480. 8583. 3850. 988. 290. 9593. 195 Tube 40. 6563. 7650. 6563. 7650. 768. 670. 768. 670. 878. 48 Tube 50. 658. 860. 658. 860. 6563. 7650. 6563. 7650. 768. 67 Calculated surface tension (N/m) Concentration100%75%50%25%5% Tube 10. 046400. 046400. 048510. 048510. 05062 Tube 20. 043260. 045800. 045800. 048340. 05089 Tube 30. 047680. 047680. 050660. 053640. 05662 Tube 40. 045190. 045190. 048670. 048670. 05562 Tube 50. 048850. 048850. 052920. 052920. 05700 Sample Calculations: where din = inside diameter of tube dout = outside diameter of tube where ? P = difference between pressure inside the bubble and outside pressure, in Pa h = manometer reading, in meters ? = density of H2O = 1000 kg/m3 g = acceleration due to gravity constant = 9. 81 m/s2 where ? = surface tension, in N/m