Thermophysical Properties of Binary Liquid Systems of Ethanoic Acid, Propanoic Acid, and Butanoic Acid with Benzene or Acetophenone

Table 3

Coefficients and standard deviation (SD) of (3).

(a) System: ethanoic acid (1) + benzene (2)

Property	𝑎0	𝑎1	𝑏0	𝑏1	𝑏2	𝑏3	SD
10^−3 𝜌, kg m^−3	0.0119	−0.0023	127.7241	25.6751	1.5885	26.0451	0.0005
𝜂, mPa s	59.5012	−0.0292	38.0928	15.3389	−91.5172	162.0792	0.0098
10^3 𝜎, N m^−1	152.321	−0.0092	78.8979	−6.4061	5.4754	−3.1067	0.0787

(b) System: propanoic acid (1) + benzene (2)

Property	𝑎0	𝑎1	𝑏0	𝑏1	𝑏2	𝑏3	SD
10^−3 𝜌, kg m^−3	0.0646	−0.0023	23.8828	4.1347	2.0768	0.2422	0.0004
𝜂, mPa s	8.5892	−0.0253	84.0671	−51.2057	289.9852	−91.7128	0.0121
10^3 𝜎, N m^−1	67.3803	−0.0098	218.9691	−50.9015	14.4385	−5.0172	0.0531

(c) System: butanoic acid (1) + benzene (2)

Property	𝑎0	𝑎1	𝑏0	𝑏1	𝑏2	𝑏3	SD
10^−3 𝜌, kg m^−3	0.0075	−0.0022	197.7351	31.0052	5.3648	0.0082	0.0004
𝜂, mPa s	1.1224	−0.0039	0.9317	0.9135	1.0511	0.9013	0.1174
10^3 𝜎, N m^−1	40.7458	−0.0097	345.5491	−83.2693	35.6763	−12.5341	0.0789

(d) System: ethanoic acid (1) + acetophenone (2)

Property	𝑎0	𝑎1	𝑏0	𝑏1	𝑏2	𝑏3	SD
10^−3 𝜌, kg m^−3	0.0133	−0.0018	135.4120	5.3912	0.5035	−1.2567	0.0008
𝜂, mPa s	5.5360	−0.0078	1.0852	0.8055	0.1232	0.6509	0.3807
10^3 𝜎, N m^−1	19.8974	−0.0061	466.4421	−181.1751	−103.1812	43.4471	0.0814

(e) System: propanoic acid (1) + acetophenone (2)

Property	𝑎0	𝑎1	𝑏0	𝑏1	𝑏2	𝑏3	SD
10^−3 𝜌, kg m^−3	0.0247	−0.0018	72.3523	−1.2922	−0.0496	−3.9453	0.0011
𝜂, mPa s	478.863	−0.0308	51.9435	32.5293	−96.0902	33.3408	0.0217
10^3 𝜎, N m^−1	82.6053	−0.0066	129.2180	−39.9785	−99.9945	64.4734	0.0998

(f) System: butanoic acid (1) + acetophenone (2)

Property	𝑎0	𝑎1	𝑏0	𝑏1	𝑏2	𝑏3	SD
10^−3 𝜌, kg m^−3	0.0219	−0.0017	80.5712	−5.6413	−4.3236	−1.0553	0.0005
𝜂, mPa s	406.2351	−0.0313	70.2532	69.7560	−96.7418	16.7550	0.0271
10^3 𝜎, N m^−1	71.4271	−0.0067	156.1280	−99.6785	26.3214	−17.0516	0.0658