A nonconducting tank of negligible heat capacity and

$1$ m$3$ volume is connected to a pipeline containing steam

at $5$ bar and $370$C$,$ filled with steam to a pressure of

$5$ bar, and disconnected from the pipeline.

a$.$ If the tank is initially evacuated, how much steam is

in the tank at the end of the filling process, and what

is its temperature?

b$.$ If the tank initially contains steam at $1$ bar and

$150$C$,$ how much steam is in the tank at the end of

the filling process, and what is its temperature?