Answer
$V=5.81m^3$
Work Step by Step
As $T\gt T_{sat}$ is a superheated vapor
From table A-6:
$\upsilon=1.9367\frac{m^3}{kg}$
Then:
$V=m\upsilon=3kg*1.9367\frac{m^3}{kg}=5.81m^3$
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