Question

fluid mechanic

1.              A 1.2-mm diameter tube is inserted into an unknown liquid whose density is 960kg/m3, and it is observed that the liquid rises 5-mm in the tube, making a contact angle of 15º. Determine:

 

(i)             The surface tension of the liquid; and

 

 (ii)      The capillary rise of the liquid, if the liquid is kerosene with surface tension 0.028 N/m and density is 820 kg/m3.  


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