$4-31$ A $0\mathrm{.}5-m^3$ rigid tank contains refrigerant$-134$a initially at $160$ kPa and $40$ percent quality. Heat is now transferred to the refrigerant until the pressure reaches $700$ kPa $.$ Determine $($a$)$ the mass of the refrigerant in the tank and $($b$)$ the amount of heat transferred. Also, show the process on a $P-$ diagram with respect to saturation lines.

Figure below shows a tank within a tank, each containing air. Pressure gage $A,$ which indicates pressure inside tank A$,$ is located inside tank B and reads $5$ psig $($vacuum$).$ The U$-$tube manometer connected to tank B contains water with a column length of $10$ in $.$ Using data on the diagram, determine the absolute pressure of the air inside tank B and inside tank A$,$ both in psia. The atmospheric pressure surrounding tank $B$ is $14\mathrm{.}7$ psia. The acceleration of gravity is $g=32\mathrm{.}2f\frac{t}{s^2}.$

Figure below shows a tank within a tank, each containing air. Pressure gage $A,$ which indicates pressure inside tank A$,$ is located inside tank B and reads $5$ psig $($vacuum$).$ The U$-$tube manometer connected to tank B contains water with a column length of $10$ in $.$ Using data on the diagram, determine the absolute pressure of the air inside tank B and inside tank A$,$ both in psia. The atmospheric pressure surrounding tank $B$ is $14\mathrm{.}7$ psia. The acceleration of gravity is $g=32\mathrm{.}2f\frac{t}{s^2}.$