8.1 surface tension 1.5 Influential Factors on surface tension (2)co-existing phase dependence of surface tension Surface tension of water at 20oC contacting with different liquids. vapor iSo-pentane benzene butanol 72.8 49.6 32.6 68 1,2=O Saturated with benzene W B Saturated with water Antonov law(2) co-existing phase dependence of surface tension Surface tension of water at 20 oC contacting with different liquids. vapor iso-pentane benzene butanol 72.8 49.6 32.6 6.8 Antonow law ' '  1,2 =  1 − 2 ' '  W ,B = W − B Saturated with benzene Saturated with water 1.5 Influential Factors on surface tension 8.1 surface tension