A rigid $0\mathrm{.}2$ m$3$ tank is initially filled with saturated liquid water at $150\backslash$deg C until a valve is opened at the bottom of the tank, removing one$-$half of the total water mass as a saturated liquid. Heat is transferred from a source at a constant temperature of $250\backslash$deg C in order to maintain a constant temperature in the tank during the emptying process.

A$)$ What is the amount of heat transfer required to maintain a constant temperature during this process?

$6$

B$)$ What is the phase of the water after half the mass has been removed $($i$.$e$.$ saturated liquid, vapor, saturated mixture of liquid and vapor, etc.$)?$ How do you know this?

C$)$ What is the entropy generated during the process?