Calculate the coefficient of thermal expansion, , from its definition for steam at 450?C and pressures of

Calculate the coefficient of thermal expansion, β, from its definition for steam at 450?C and pressures of 0.1 atm and 10 atm from standard steam tables. Then compare your results with the value obtained by assuming that steam is a perfect gas and explain the difference.GIVENSteamTemperature = 450?C = 723K

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Density (kg/m) 3.262 2.824 0.03219 0,02803 Temperature (K) Pressure (Atm) 10 673 773 673 773 10 0.1 0.1