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xzibition8612
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Homework Statement
Calculate the mass of water contained in a 0.6 ft^3 vessel under the following conditions:
a) 15 psia, 300 F
b) 100 psia, 500 F
c) 20 psia, 210 F
d) 60 psia, saturated vapor
e) 60 psia, saturated liquid
f) at the critical state
Homework Equations
PV=mRT
The Attempt at a Solution
I suppose the ideal gas equation is valid? Can someone explain to me why or why not?
Assuming it's valid, for a,b the temperature is above the saturation (boiling) temperature, so R would be the water gas constant? For c, d, e, and f, I don't know what values to plug in for R. Any help would be appreciated. Thanks.