水的粘度[整理版].doc

1、水的粘度 整理版 水的粘度 (0,40?)溫度 T 溫度 T 粘度 Pa?s 或粘度 Pa?s 或-2-2 厘泊 N?s?m 厘泊 N?s?m ?K ? K-3- 30 273.16 1.7921 1.7921 1020.2 293.36 1.0000 1.000010-3- 31 274.16 1.7313 1.73131021 294.16 0.9810 0.981010-3- 32 275.16 1.6728 1.67281022 295.16 0.9579 0.957910-3- 33 276.16 1.6191 1.61911023 296.16 0.9358 0.935810 -3

2、-34277.161.5674 1.567410 24 297.16 0.9142 0.9142 10 -3-35 278.16 1.51881.518810 25 298.16 0.8937 0.893710-3- 36 279.16 1.4728 1.472810 26299.160.8737 0.873710 -3- 37 280.16 1.4284 1.4284 10 27 300.16 0.85450.854510 -3- 38 281.16 1.3860 1.386010 28 301.16 0.8360 0.836010 -3- 39 282.16 1.3462 1.3462 1

3、0 29 302.16 0.8180 0.818010 -3-310 283.161.30771.3077 10 30 303.16 0.8007 0.800710 -3-311 284.16 1.27131.271310 31 304.16 0.7840 0.7840 10 -3- 312 285.16 1.2363 1.23631032 305.16 0.7679 0.767910 -3- 313 286.16 1.2028 1.202810 33 306.160.75230.7523 10 -3- 314 287.16 1.1709 1.1709 10 34 307.16 0.73710

4、.737110 -3- 315 288.16 1.1404 1.140410 35 308.16 0.7225 0.722510 -3-316 289.16 1.1111 1.1111 10 36 309.16 0.7085 0.708510-3-317 290.161.08281.0828 10 37 310.16 0.6947 0.694710 -3-318 291.16 1.05591.055910 38 311.16 0.6814 0.681410-3- 319 292.16 1.0299 1.02991039 312.16 0.6685 0.668510-3- 320 293.16

5、1.0050 1.0050 10 40 313.16 0.6560 0.656010水的物理性質溫度飽和蒸氣壓密度焓比定壓熱容導熱系數粘度體積膨脹系表面張力普蘭德數-3-1-1-1-2-1-1-5-4-1-3-1t/? p/kPa /kg?m H/kJ?kg c/kJ?kg?K/10W?m?K/10Pa?s 數 /10K /10N?m Pr p0 0.6082 999.9 0 4.212 55.13 179.210.63 75.6 13.66 10 1.2262 999.742.04 4.197 57.45 130.770.70 74.1 9.52202.3346998.283.90 4.18

6、359.89 100.501.82 72.6 7.01 304.2474 995.7125.694.17461.7680.073.21 71.2 5.42 40 7.3766 992.2165.71 4.17463.3865.603.87 69.6 4.3250 12.31 988.1 209.30 4.174 64.78 54.94 4.49 67.73.54 60 19.932 983.2251.12 4.17865.94 46.885.11 66.2 2.987031.164977.8292.994.17866.76 40.61 5.70 64.3 2.54 80 47.379 971.

7、8334.944.19567.45 35.65 6.3262.6 2.22 90 70.136 965.3 376.98 4.208 67.98 31.656.9560.7 1.96 100101.33 958.4419.10 4.220 68.04 28.38 7.52 58.8 1.76 110143.31 951.0461.34 4.23868.27 25.898.08 56.9 1.61120198.64943.1503.67 4.25068.50 23.73 8.64 54.8 1.47 130270.25 934.8546.384.26668.5021.779.17 52.8 1.

8、36 140 361.47 926.1 589.08 4.287 68.2720.109.72 50.7 1.26150 476.24 917.0 632.20 4.31268.38 18.6310.3 48.6 1.18160 618.28907.4 675.334.346 68.2717.36 10.7 46.6 1.11 170792.59897.3719.294.379 67.92 16.28 11.3 45.3 1.05 180 1003.5886.9763.254.41767.4515.30 11.9 42.3 1.00 190 1255.6 876.0 807.63 4.4606

9、6.9914.4212.6 40.80.96 200 1554.77 863.0 852.434.505 66.2913.63 13.3 38.4 0.932101917.72 852.8 897.65 4.555 65.48 13.0414.1 36.1 0.91 220 2320.88 840.3943.70 4.61464.55 12.4614.8 33.8 0.892302798.59 827.3 990.18 4.68163.73 11.97 15.9 31.6 0.88 240 3347.91 813.6 1037.49 4.756 62.80 11.4716.8 29.1 0.8

10、7250 3977.67 799.0 1085.64 4.844 61.76 10.98 18.1 26.7 0.86 2604693.75 784.0 1135.04 4.949 60.84 10.59 19.7 24.2 0.87 270 5503.99 767.91185.28 5.070 59.96 10.20 21.6 21.9 0.88 280 6417.24 750.7 1236.28 5.22957.45 9.81 23.7 19.5 0.89 290 7443.29 732.3 1289.95 5.485 55.82 9.4226.2 17.2 0.93 300 8592.9

11、4 712.5 1344.80 5.736 53.96 9.12 29.2 14.7 0.97310 9877.96 691.1 1402.16 6.071 52.34 8.83 32.9 12.3 1.02 320 11300.3667.1 1462.03 6.573 50.59 8.53 38.2 10.0 1.11 330 12879.6 640.2 1526.197.243 48.73 8.14 43.3 7.82 1.22 340 14615.9 610.1 1594.75 8.164 45.717.75 53.4 5.78 1.38 350 16538.5 574.4 1671.3

12、7 9.504 43.03 7.26 66.8 3.891.60 360 18667.1 528.0 1761.39 13.984 39.54 6.67 109 2.06 2.36 37021040.9 450.5 1892.43 40.319 33.73 5.69 264 0.48 6.80F3 Viscosity decreases with pressure (at temperatures below 33?C) Viscous flow occurs by molecules moving through the voids that existbetween them. As th

13、e pressure increases, the volume decreases and the volume of these voids reduces, so normally increasing pressure increases the viscosity.Waters pressure-viscosity behavior 534 can be explained by the increased pressure (up to about 150 MPa) causing deformation, soreducing the strength of the hydrog

14、en-bonded network, which is also partially responsible for the viscosity. This reduction in cohesivity more than compensates for the reduced void volume. It is thus a direct consequence of the balance between hydrogen bonding effects and the van der Waals dispersion forces 558 in water; hydrogen bon

15、ding prevailing at lowertemperatures and pressures. At higher pressures (and densities), the balance between hydrogen bonding effects and the van der Waals dispersion forces is tipped in favor of the dispersion forces and the remaining hydrogen bonds are stronger due to the closer proximity of thecontributing oxygen atoms 655. Viscosity, then, increases with pressure.The dashed line (opposite) indicates the viscosity minima.The variation of viscosity with pressure and temperature has beenused as evidence that the viscosity is determine