Research Article

Speeds of Sound and Excess Molar Volume for Binary Mixture of 1,4-Dioxane with 1-Heptanol at Five Temperatures

Table 3

Coefficients () and standard deviation () for 1,4-dioxane + 1-heptanol.

Property (K) (102)

(10−10 m2N−1)298.151.4061−0.02230.1258−0.0355−0.15090.1961
303.151.4189−0.08160.0851−0.0024−0.13950.1805
308.151.4507−0.08210.0879−0.0061−0.17340.2665
313.151.4594−0.08860.07800.0403−0.11420.3415
318.151.5097−0.1010−0.09490.12290.11780.0559

(m3 mol−1)298.150.1639−0.02780.01030.0165−0.01490.0158
303.150.1643−0.02680.01000.0139−0.01510.0191
308.150.1645−0.02780.00990.0156−0.01540.0183
313.150.1648−0.02750.01150.0146−0.01940.0169
318.150.1651−0.02820.01100.0163−0.01730.0189

(10−11 m)298.150.6143−0.04630.0645−0.0173−0.06280.0829
303.150.6135−0.06860.0502−0.0041−0.06190.0756
308.150.6201−0.06760.0510−0.0055−0.07530.1129
313.150.6169−0.06830.04660.0117−0.05280.1452
318.150.6306−0.0726−0.02520.04820.04480.0227

(106 kgm−2s−1)298.15−0.25160.0606−0.03680.00140.02600.0290
303.15−0.24090.0620−0.0324−0.00200.02490.0265
308.15−0.23210.0592−0.0314−0.00250.02740.0341
313.15−0.22140.0564−0.0303−0.00650.02600.0399
318.15−0.21480.0540−0.0123−0.01250.00170.0128

(ms−1)298.15−95.56436.7116−14.196314.36727.212216.5048
303.15−89.644110.8671−9.741910.81585.922813.5179
308.15−85.61869.4617−9.805510.91749.717520.3881
313.15−79.55278.3222−7.94636.74603.714324.8586
318.15−77.50298.13038.6723−0.8418−18.51507.7314