Results and DiscussionThe surface tension values of the vegetable oils studied arepresented in Table (1). The surface tension of all of the oilsdecreased with the temperature increase. This could be dueto the energy obtained to overcome the resistance to to pullback the molecules from each other. This may be due to theattractive forces among the oil molecules. From Figure (3),one can see that the reduction of the surface tension is oflinear trend of the temperature increment.
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