A closed, rigid tank contains a two$-$phase liquid$-$vapor mixture of Refrigerant $22$ initially at $-20C$ with a quality of $50\mathrm{.}00\%.$ Energy

transfer by heat into the tank occurs until the refrigerant is at a final pressure of $6$ bar.

Deter mine the final temperature, in $C.$

If the firla! state is in the superheated vapor region, at what temperature, in $C,$ does the tank contain only saturated vapor?