Research Article

Towards the Equation of State for Neutral (C2H4), Polar (H2O), and Ionic ([bmim][BF4], [bmim][PF6], [pmmim][Tf2N]) Liquids

Table 6

Comparison of internal pressure for [bmim][BF4] based on the LF-EOS [14] and FT-EOS (this work) with the values estimated [16] by experimental data on speed of sound , density , and isobaric heat capacity .

[14]
(K)

(MPa)
[16]  
(K)

(MPa)
[FT]
(K)

(MPa)

(J/cm3)

313,1482,78283,15459,91290743,76555,15
332,6471,50288,15459,31310573,16486,41
352,6460,35293,15459,20330463,91437,85
372,7450,11298,15457,79350388,61401,57
392,8440,00303,15455,76370333,84373,35
412,9429,23308,15453,73390292,27350,67
432,6419,35313,15451,20410259,66331,94
452,3408,84318,15448,06430233,40316,13
472,2399,19323,15446,64450211,77302,52
328,15444,61470193,64290,60
333,15443,09490178,19280,01
338,15441,68510166,76270,46
343,15439,75517162,41267,31