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Question: just solve for plot for air...

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#4: For a compressible fluid, the density of the fluid is a function of pressure & temperature. The density function is expressed as Where P is pressure, R is the specific gas constant for the compressible gas (Table A.6), and T is temperature.

TABLE A.6 Physical Properties of Gases at Room Temperature and Pressure Gas Constant, R Density, p Dynamic Viscosity, μ x 106 Specific Heat, C Gas Air Argon Carbon dioxide Helium Hydrogen Oxygen (ft lbf/slug R) 1.710 1,250 1,130 12,400 24.700 1,550 [J/(kg-K)] 286.8 (slug/ft2) 0.0023 0.00318 0.00354 0.000317 0.000160 0.00254 (kg/mh 1.19 1.61 1.82 0.164 0.082 6 1.31 (lbf-s/ft2) 0.3758 04162 0.2919 0.4161 0.1879 0.4161 (N.s/m2) 18.0 20.0 14.0 20.0 9.0 20.0 (Btu/slug.R) [J/(kg-K)] G/C, γ 208 189 2 077 4 126 260 7.72 4.02 6.60 1 005 523 876 5 188 1.40 1.67 1.30 1.66 1.405 1.40 39.9 110 14 310 7.08 920 Notes: R = R/MW, where R-| 545 ft lb仈b mol R = 49,700 ft Ibf/ lug mol R 8 312 N mum 1 K) and MW = molecular weight (engineering units) = molecular mass (SI units);1 Btu 778 ft Ibf

In our atmosphere, the pressure and temperature change as a function of height above sea level. The temperature function is where T is the temperature at any point above sea level, To is standard temperature at sea level, α is a linear relationship between distance and temperature change (aka lapse rate), and h is distance above sea level. Problem: Graph the relationship between pressure and elevation in the stratosphere assuming it to be and extends to an elevation of 20,000 m. α = 6.5 °C/km isothermal at-57 -C. The stratosphere begins at approximately 11,000 m where the pressure is 2.5 kPa

*Just solve for/ plot for air*

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