Surface tension And Capillarity
Example 5 :

Air is forced through a tube of internal diameter of 1.5 mm immersed at a depth of 1.5 cm in a mineral oil having specific gravity of 0.85. Calculate the unit surface energy of the oil if the maximum bubble pressure is 150 N/m2.

Solution :

Given data:

                    Bubble pressure = 150 N/m2

                   Pressure of overlying oil N/m2

                   Effective Pressure element to surface tension

                                  

                                    

                   Answer:-           

Prev
First | Next | End