利用Origin双参数拟合表面张力与浓度曲线

甘泉,杜源,雷航,阎晓琦

Two-Parameter Data Fitting Method for the Curve of Surface Tension and Concentration with Origin Software

Quan GAN,Yuan DU,Hang LEI,Xiao-Qi YAN

表1 30 ℃下正丁醇水溶液表面张力的实验数据与计算结果

c/(mol·L-1) Δp1/Pa Δp2/Pa Δp3/ Pa \begin{document}$\overline {\Delta p} /{\rm{Pa}}$\end{document} σ/(N?m-1) 0 588 570 575 577.7 0.07118 0.020 552 562 559 557.7 0.06872 0.050 509 509 510 509.3 0.06276 0.100 449 450 447 448.7 0.05528 0.200 383 383 387 382.3 0.04711 0.300 344 341 347 344.0 0.04234 0.400 312 313 310 311.7 0.03840 0.500 282 283 284 283.0 0.03487