Related Resources: physics

Properties of Air at 1 atm Pressure

Heat Transfer Engineering
Thermodynamics
Engineering Physics

Properties of air at 1 atm pressure

Temp
T, °C
Density
ρ, kg/m3
Specific
Heat
cρ
Thermal
Conductivity
k, W/m•K
Thermal
Diffusivity
α, W/m•K
Dynamic
Viscosity
µ, kg/m•s
Kinematic
Viscosity
ν, m2/s
Prandtl
Number
Pr
-150
2.866
983
0.01171
4.158 x 106
8.636 x 10-6
3.013 x 106
0.7246
-100
2.038
966
0.01582
8.036 x 106
1.189 x10-5
5.837 x 106
0.7263
-50
1.582
999
0.01979
1.252 x105
1.474 x10-5
9.319 x 106
0.7440
-40
1.514
1002
0.02057
1.356 x105
1.527 x10-5
1.008 x105
0.7436
-30
1.451
1004
0.02134
1.465 x105
1.579 x10-5
1.087 x105
0.7425
-20
1.394
1005
0.02211
1.578 x105
1.630 x10-5
1.169 x105
0.7408
-10
1.341
1006
0.02288
1.696 x105
1.680 x10-5
1.252 x105
0.7387
0
1.292
1006
0.02364
1.818 x105
1.729 x10-5
1.338 x105
0.7362
5
1.269
1006
0.02401
1.880 x105
1.754 x10-5
1.382 x105
0.7350
10
1.246
1006
0.02439
1.944 x105
1.778 x10-5
1.426 x105
0.7336
15
1.225
1007
0.02476
2.009 x105
1.802 x10-5
1.470 x105
0.7323
20
1.204
1007
0.02514
2.074 x105
1.825 x10-5
1.516 x105
0.7309
25
1.184
1007
0.02551
2.141 x105
1.849 x10- 5
1.562 x105
0.7296
30
1.164
1007
0.02588
2.208 x105
1.872 x10-5
1.608 x105
0.7282
35
1.145
1007
0.02625
2.277 x105
1.895 x10-5
1.655 x105
0.7268
40
1.127
1007
0.02662
2.346 x105
1.918 x10-5
1.702 x105
0.7255
45
1.109
1007
0.02699
2.416 x105
1.941 x10-5
1.750 x105
0.7241
50
1.092
1007
0.02735
2.487 x105
1.963 x10-5
1.798 x105
0.7228
60
1.059
1007
0.02808
2.632 x105
2.008 x10-5
1.896 x105
0.7202
70
1.028
1007
0.02881
2.780 x105
2.052 x10-5
1.995 x105
0.7177
80
0.9994
1008
0.02953
2.931 x105
2.096 x10-5
2.097 x105
0.7154
90
0.9718
1008
0.03024
3.086 x105
2.139 x10-5
2.201 x105
0.7132
100
0.9458
1009
0.03095
3.243 x105
2.181 x10-5
2.306 x105
0.7111
120
0.8977
1011
0.03235
3.565 x105
2.264 x10-5
2.522 x105
0.7073
140
0.8542
1013
0.03374
3.898 x105
2.345 x10-5
2.745 x105
0.7041
160
0.8148
1016
0.03511
4.241 x105
2.420 x10-5
2.975 x105
0.7014
180
0.7788
1019
0.03646
4.593 x105
2.504 x10-5
3.212 x105
0.6992
200
0.7459
1023
0.03779
4.954 x105
2.577 x10-5
3.455 x105
0.6974
250
0.6746
1033
0.04104
5.890 x105
2.760 x10-5
4.091 x105
0.6946
300
0.6158
1044
0.04418
6.871 x105
2.934 x10-5
4.765 x105
0.6935
350
0.5664
1056
0.04721
7.892 x105
3.101 x10-5
5.475 x105
0.6937
400
0.5243
1069
0.05015
8.951 x105
3.261 x10-5
6.219 x105
0.6948
450
0.4880
1081
0.05298
1.004 x 104
3.415 x10-5
6.997 x105
0.6965
500
0.4565
1093
0.05572
1.117 x 104
3.563 x10-5
7.806 x105
0.6986
600
0.4042
1115
0.06093
1.352 x 104
3.846 x10-5
9.515 x105
0.7037
700
0.3627
1135
0.06581
1.598 x 104
4.111 x10-5
1.133 x 104
0.7092
800
0.3289
1153
0.07037
1.855 x 104
4.362 x10-5
1.326 x 104
0.7149
900
0.3008
1169
0.07465
2.122 x 104
4.600 x10-5
1.529 x 104
0.7206
1000
0.2772
1184
0.07868
2.398 x 104
4.826 x10-5
1.741 x 104
0.7260
1500
0.1990
1234
0.09599
3.908 x 104
5.817 x10-5
2.922 x 104
0.7478
2000
0.1553
1264
0.11113
5.664 x 104
6.630 x10-5
4.270 x 104
0.7539

Note: For ideal gases, the properties cρ, k, µ, and Pr are independent of pressure. The properties ρ, ν, and α at a pressure P (in atm) other than 1 atm are determined by multiplying the values of ρ at the given temperature by P and by dividing v and α by P.

Source: Data generated from the EES software developed by S. A. Klein and F. L. Alvarado. Original sources: Keenan, Chao, Keyes, Gas Tables, Wiley, 1984; and Thermophysical Properties of Matter. Vol. 3: Thermal Conductivity, Y. S. Touloukian, P. E. Liley, S. C. Saxena, Vol. 11: Viscosity, Y. S. Touloukian, S. C. Saxena, and P. Hestermans, IFI/Plenun, NY, 1970, ISBN 0-306067020-8.

Contribute Article
Spider Optimizer

© Copyright 2000 - 2021, by Engineers Edge, LLC www.engineersedge.com
All rights reserved
Disclaimer | Feedback | Advertising | Contact

Date/Time:


User Reviews/Comments:

There are currently no comments available.


Add a Comment (you must be logged in to post comment Register):
Name:
Email: (Optional)
Comment: