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Air Properties

Temperature, density, specific heat, thermal conductivity, expansion coefficient, kinematic viscosity and Prandtl's number for temperatures ranging -150 - 400 oC

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Common properties for air are indicated the table below

Temperature
- t -
(oC)		 Density
- ρ -
(kg/m3)		 Specific heat capacity
- cp -
(kJ/kg K)		 Thermal conductivity
- l -
(W/m K)		 Kinematic viscosity
- ν -
(m2/s) x 10-6		 Expansion coefficient
- b -
(1/K) x 10-3		 Prandtl's number
- Pr -
-150 2.793 1.026 0.0116 3.08 8.21 0.76
-100 1.980 1.009 0.0160 5.95 5.82 0.74
-50 1.534 1.005 0.0204 9.55 4.51 0.725
0 1.293 1.005 0.0243 13.30 3.67 0.715
20 1.205 1.005 0.0257 15.11 3.43 0.713
40 1.127 1.005 0.0271 16.97 3.20 0.711
60 1.067 1.009 0.0285 18.90 3.00 0.709
80 1.000 1.009 0.0299 20.94 2.83 0.708
100 0.946 1.009 0.0314 23.06 2.68 0.703
120 0.898 1.013 0.0328 25.23 2.55 0.70
140 0.854 1.013 0.0343 27.55 2.43 0.695
160 0.815 1.017 0.0358 29.85 2.32 0.69
180 0.779 1.022 0.0372 32.29 2.21 0.69
200 0.746 1.026 0.0386 34.63 2.11 0.685
250 0.675 1.034 0.0421 41.17 1.91 0.68
300 0.616 1.047 0.0454 47.85 1.75 0.68
350 0.566 1.055 0.0485 55.05 1.61 0.68
400 0.524 1.068 0.0515 62.53 1.49 0.68

More about Air Composition!

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