
水的粘度表
财务总监述职报告-gb50223
2023年3月20日发(作者:pmp试题)1/7
水的黏度表(0~40℃)
温度T
粘度μ
Pa·s或
N·s·m
-2
温度T
粘度μ
ﻫ
Pa·s或
N·s·m-2℃K℃K
0
27
3.16
1.7921
1.7921
×10—3
20。
2
293。361.0000
1。0000×1
0-3
1
274。1
6
1.73
13
1。7313
×10-3
21294.16
0.981
0
0.9810×
10-3
2
275.1
6
1.6728
1.6728
×10—3
22295.160。9579
0。9579×
10-3
3
276。1
6
1。6
191
1.6191
×10—3
23296。160.9358
0.9358×
10—3
4277.16
1.56
74
1.5674×
10—3
24297。160。9142
0.9142×
10—3
5278.161.5188
1.5188
×10-3
25
298.1
6
0.8937
0.8937×
10-3
6279。161.4728
1。4728
×10-3
26
299。1
6
0.8737
0。8737×
10-3
2/7
7280.16
1.428
4
1。428
4×10—3
27
300.1
6
0.8545
0.8545×1
0—3
8281。161.3860
1.3860
×10-3
28
301.1
6
0.8360
0。8360×10-
3
9
282.1
6
1.34
62
1.3462×
10-3
29302.160.8180
0.8180×
10-3
10283.161.3077
1。3077
×10-3
30
303。1
6
0.8007
0.8007
×10—3
11
284。1
6
1。27
13
1.2713×
10—3
31304.160.7840
0.7840×1
0-3
12
285。1
6
1。2363
1。2363
×10—3
32305.160.7679
0.7679×1
0-3
13286.161.2028
1。2028
×10-3
33306.16
0.752
3
0。7523×
10-3
14
287。1
6
1.17
09
1。1709×
10—3
34
307.
16
0。737
1
0.7371×
10-3
15288.161.1404
1。1404
×10-3
35308.160。7225
0.7225×1
0-3
16289。161。11111。111136309.10.70850.7085
3/7
×10—36×10-3
17290。16
1.08
28
1.0828×
10—3
37310.160。6947
0。6947×1
0—3
18291。161。0559
1。0559
×10—3
38311.160.6814
0。6814×
10—3
19
292.1
6
1。0299
1.0299
×10-3
39
312.1
6
0。668
5
0.6685×
10—3
20293.16
1.00
50
1。0050
×10-3
40313。160。6560
0。6560
×10—3
水的物理性质
温
度
t
/℃
饱和蒸气
压p/kPa
密度ρ
/kg·m-3
焓
H/kJ·kg—1
比定压热
容cp/kJ·kg-
1·K—1
导热系数
λ/10-2
W·m—1·K-1
粘度μ
/10-5Pa·s
体积膨
胀系数α
/10—4K-1
表面张力
σ/10-3
N·m—1
普兰德
数Pr
00。6082999。904。21255。13179。210.6375.613.66
101.2262999。742.044。19757。45130。770。7074。19.52
202.3346998.283.904.18359.89100。501.8272.67。01
304。2474
99
5.7
125。6
9
4.17461。7680.073。2171.25.42
407。3766992。2165。714.17463。3865.603。8769.64.32
4/7
5012.31988。1209.304。17464.7854.944。4967.73。54
6019。932983。2251。124。17865.9446.885.1166。22.98
7031。164977。8292。994。17866。7640.615。7064.32.54
8047.379971。8334.944。19567.4535.656.3262.62。22
9070.136965.3376.984。20867。9831.656。9560.71。96
100101.33958.4419。104。22068.0428.387.5258。81。76
11
0
143.31951。0461。344。23868。2725。898.0856.91。61
1
20
198。64943。1
503.6
7
4.25068.5023.738.6454。81。47
13
0
270.25934.8546.384。26668.5021。779。1752.81。36
1
40
361.47926.1
589.0
8
4。28768。2720.109。7250。71.26
15
0
476.24917。0632。204。31268.3818。6310。348.61.18
160618.28907。4675.334.34668。2717.3610。746。61。11
1
70
792。59
897.
3
719。2
9
4。37967。9216。2811。345.31。05
1801003.5886.9763。254。41767。4515.3011.942。31。00
19
0
1255。6
876.
0
807。634.46066。9914。4212.640.80。96
20
0
1554.77863.0
852。4
3
4.50566。2913.6313。338.40。93
2101917.72852。8897.654.55565。4813.0414。136.10.91
22
0
2320.8
8
840.3943.704.61464.5512。4614。833.80.89
2302798。59
8
27.3
990.1
8
4.68163.7311。9715.931。6
0.8
8
2403347。91
8
13.6
1037.494.75662.8011.4716.829.10.87
2
50
3977。67799.0
1085。
64
4.84461。7610.9818.126.70。86
5/7
F3Viscositydecreaseswithpres
sure
(attemperaturesbelow33°C)
Viscousflowoccursbymoleculesmovingthroughthevoi
dsthatexistbetweenthem。Asthepressureincrea
ses,thevolumedecreasesandthevolumeofthesevoidsre
duces,sonormallyincreasingpressureincreasesthev
2
60
4693.75
78
4.0
1135.0
4
4。94960.8410.5919.724。20。87
270
5503.9
9
767。
9
1185.285.07059.9610。2021。621.90.88
2806417。24
75
0.7
1236.285.22957。459.8123.719.50。89
29
0
7443.29
73
2.3
1289.955.48555.829.4226.217.20。93
3
00
8592。9
4
71
2.5
1344.805。73653。969。1229。214.70.97
310
9877.9
6
69
1.1
1402.166.07152。348.8332.912.31.02
3
2
0
11300.3667.11462。036。57350.598.5338。210.01。11
33012879。6640。2
152
6.19
7。24348.738.1443.37.821.22
34
0
14615。9610.11594.758.16445.717。7553。45.781.38
350
165
38.5
574。41671.379.50443.037.2666.83。891.60
36
0
18667。1
52
8.0
1761.3913.98439.546。671092。062。36
37021040.9450.51892.4340.31933.735.692640.486.80
6/7
iscosity.
Water'spressure—viscositybehavior[534]canbeexplained
bytheincreasedpressure(uptoabout150MPa)causing
deformation,soreducingthestrengthofthehydrog
en-bondednetwork,whichisalsopartiallyresponsiblef
ortheviscosity.Thisreductionincohesivitymo
rethancompensatesforthereducedvoidvolum
thusadirectconsequenceofthebalancebetweenhydro
genbondingeffectsandthevanderWaalsdispersion
forces[558]inwater;hydrogenbondingprevailingatlower
temperaturesandpressures。Athigherpressures(anddensi
ties),thebalancebetweenhydrogenbondingeffectsandtheva
nderWaalsdispersionforcesistippedinfavorofthe
dispersionforcesandtheremaininghydrogenbondsare
strongerduetothecloserproximityofthecontributing
oxygenatoms[655].Viscosity,then,increaseswithpressu
re。Thedashedline(opposite)indicatestheviscosi
tyminima.
7/7
Thevariationofviscositywithpressureandtemperatur
ehasbeenusedasevidencethattheviscosityisdetermin
edmorebytheextentofhydrogenbondingratherthanhydrog
enbondingstrength.
Self—diffusionisalsoaffectedbypressurewhere(a
tlowtemperatures)boththetranslationalandrotationalmo
tionofwateranomalouslyincreaseasthepressureinc
reases.