最大气泡法测定溶液表面张力数据处理

实验温度：30℃

乙醇溶液浓度 C 平均值σN·m－1

d σ/dc

Γ

C/Γ5.0%0.4810.4820.4870.4830.05558-0.147 2.91766E-0617137.0210.0%0.4040.4040.4030.4040.04642-0.1259 4.99773E-0620009.0715.0%0.3660.3680.3660.3670.04217-0.1048 6.24022E-0624037.6120.0%0.3310.3300.3330.3310.03810-0.0837 6.64512E-0630097.2825.0%0.2930.2920.2910.2920.03358-0.0626 6.21243E-0640241.8830.0%0.2690.2700.2710.2700.03105-0.0415 4.94216E-0660702.2235.0%0.2630.2630.2620.2630.03021-0.0204 2.8343E-06123487.440.0%0.2500.2500.2490.2500.028710.0007-1.11149E-07-3598774

蒸馏水0.6120.6100.6120.6110.07118

r=0.23*10-3

σ=(△P*r)/2r=2σ/△P 溶液表面张力测定—气泡的最大压力法

△Pmax （kpa)σ水=71.18*10-3