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clc
// Example 1.2.py
// A pressure vessel that has a volume of 10 m^3 is used to store high
// pressure air for operating a supersonic wind tunnel. If the air pressure
// and temperature inside the vessel are 20 atm and 300 K, respectively,
// what is the mass of air stored in the vessel//
// Variable declaration
V = 10 // volume of vessel (m^3)
p = 20.0 // pressure (atm)
T = 300 // temperature (K)
R = 287.0 // gas constant (J/Kg/K)
// Calculations
p = p * 101000.0 // units conversion to N/m^2
rho = p/R/T // from ideal gas equation of state
m = V * rho // total mass volume * density
// Result
printf("\n Total mass stored is %.1f Kg", m)
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