209. Calculate the total surface energy of a 7 g emulsion of benzene in water with a concentration of 55% (mass) and a dispersion of 3 μm-1 at 313 K. The density of benzene at this temperature is 0.8576 g/cm3, the surface tension is 26.13 mJ/m2 , the temperature coefficient of surface tension of benzene (dσ/dT) is -0.13 mJ/(m2 •K).

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