Answer:
Maximum safe operating temperature = 370°C
Explanation:
Radius of stainless steel vessel = 25.0/2 = 12.5 cm
height of vessel = 30.0 cm
[tex]volume =\pi r^2h[/tex]
Substitute the values in the above formula
[tex]volume=3.14 \times (1.25\ cm)^2 \times 30.0\ cm\\=14718.75\ cm^3\ 0.014718\ m^3[/tex]
Maximum safe temperature is calculated by using ideal gas equation
PV = nRT
pressure, P = 6.60 mPa = [tex]6.60\times 10^6\ Pa[/tex]
R = 8.314 J/mol.K
[tex]n=\frac{m}{M}[/tex]
molecular mass of CO2 = 44 g/mol
mass of CO2 = 0.800 kg = 800 g
[tex]n=\frac{800\ g}{44\ g/mol} \\=18.18\ mol[/tex]
[tex]6.60\times 10^{6} \times 0.014718=18.18\times 8.314 \times T\\T=643\ K[/tex]
T (K)=T (°C) + 273.15
643 K = T (°C) + 273.15
T = 643 - 273.15
= 369.85 °C = 370°C
Maximum safe temperature = 370°C
