20. For a preliminary calculation it is required the pressure in a vessel of 1.0 lb of water steam. The temperature of the vessel is 600ºF and the volume is 0.514ft3 . Use MH2O=18 kg/kgmol and assume ideal-gas behavior.
a. 18 psia
b. 458 psia
c. 839 psia
d. 1228 psia
Answer:
(d) 1228 psia
Solution:
We know that the universal gas constant is;
Total moles in the vessel are;
Temperature is;
T = 600oF = (600+460) R
By ideal gas equation;
...(Answer)
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