Research Article

A Thermodynamics Study on the Tetrahydrofuran Effect in Exfoliated Graphite Nanoplatelets and Activated Carbon Mixtures at Temperatures between 293.15 and 308.15 K

Table 11

Analysis of variance two-factor without replication for density, speed of sound, refractive index, isentropic compressibility, and relaxation strength in binary AC + THF mixtures.

Source of variationSSdfMSF valueFcrit

Density
Concentration0.17918350.035837408.26581.81E − 152.901295
Temperature906.29483302.098334416265.34E − 443.287382
Error0.001317158.78E − 05
Total906.475323906.4753
Speed of sound
Concentration0.30068350.06013722.982171.54E − 062.901295
Temperature17451.7935817.26322231581.42E − 423.287382
Error0.03925150.002617
Total17452.1323
Refractive index
Concentration6.9E − 0951.38E − 09231.53E − 062.901295
Temperature0.00021137.03E − 0511721841.72E − 403.287382
Error9E − 10156E − 11
Total0.00021123
Isentropic compressibility
Concentration9.34E − 0551.87E − 0539.250784.28E − 082.901295
Temperature2.9620930.98736320741152.38E − 423.287382
Error7.14E − 06154.76E − 07
Total2.9621923
Relaxation strength
Concentration2.89E − 0755.79E − 0823.538231.32E − 062.901295
Temperature0.01711430.00570523192951.03E − 423.287382
Error3.69E − 08152.46E − 09
Total0.01711523