Related Resources: thermodynamics

Ideal-Gas Properties Air

Thermodynamics
Heat Transfer

Ideal-Gas Properties of Air (English Units), Standard Entropy at 1 atm = 101.325 kPa = 14.696 lbf/in.2

Where:

T = Temperature
u = Specific internal energy
h = Specific enthalpy
s0T = Specific entropy

T
(R)
u
(Btu/lbm)
h
(Btu/lbm)
s0T
(Btu/lbm R)
400
68.212
95.634
1.56788
440
75.047
105.212
1.59071
480
81.887
114.794
1.61155
520
88.733
124.383
1.63074
536.67
91.589
128.381
1.63831
540
92.160
129.180
1.63979
560
95.589
133.980
1.64852
600
102.457
143.590
1.66510
640
109.340
153.216
1.68063
680
116.242
162.860
1.69524
720
123.167
172.528
1.70906
760
130.118
182.221
1.72216
800
137.099
191.944
1.73463
840
144.114
201.701
1.74653
880
151.165
211.494
1.75791
920
158.255
221.327
1.76884
960
165.388
231.202
1.77935
1000
172.564
241.121
1.78947
1040
179.787
251.086
1.79924
1080
187.058
261.099
1.80868
1120
194.378
271.161
1.81783
1160
201.748
281.273
1.82670
1200
209.168
291.436
1.83532
1240
216.640
301.650
1.84369
1280
224.163
311.915
1.85184
1320
231.737
322.231
1.85977
1360
239.362
332.598
1.86751
1400
247.037
343.016
1.87506
1440
254.762
353.483
1.88243
1480
262.537
364.000
1.88964
1520
270.359
374.565
1.89668
1560
278.230
385.177
1.90357
1600
286.146
395.837
1.91032
1650
296.106
409.224
1.91856
1700
306.136
422.681
1.92659
1750
316.232
436.205
1.93444
1800
326.393
449.794
1.94209
1850
336.616
463.445
1.94957
1900
346.901
477.158
1.95689
1950
357.243
490.928
1.96404
2000
367.642
504.755
1.97104
2050
378.096
518.636
1.97790
2100
388.602
532.570
1.98461
2150
399.158
546.554
1.99119
2200
409.764
560.588
1.99765
2300
431.114
588.793
2.01018
2400
452.640
617.175
2.02226
2500
474.330
645.721
2.03391
2600
496.175
674.421
2.04517
2700
518.165
703.267
2.05606
2800
540.286
732.244
2.06659
2900
562.532
761.345
2.07681
3000
584.895
790.564
2.08671
3100
607.369
819.894
2.09633
3200
629.948
849.328
2.10567
3300
652.625
878.861
2.11476
3400
675.396
908.488
2.12361
3500
698.257
938.204
2.13222
3600
721.203
968.005
2.14062
3700
744.230
997.888
2.14880
3800
767.334
1027.848
2.15679
3900
790.513
1057.882
2.16459
4000
813.763
1087.988
2.17221
4100
837.081
1118.162
2.17967
4200
860.466
1148.402
2.18695
4300
883.913
1178.705
2.19408
4400
907.422
1209.069
2.20106
4500
930.989
1239.492
2.20790
4600
954.613
1269.972
2.21460
4700
978.292
1300.506
2.22117
4800
1002.023
1331.093
2.22761
4900
1025.806
1361.732
2.23392
5000
1049.638
1392.419
2.24012
5100
1073.518
1423.155
2.24621
5200
1097.444
1453.936
2.25219
5300
1121.414
1484.762
2.25806
5400
1145.428
1515.632
2.26383
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