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Required information

A piston$-$cylinder device initially contains $0\mathrm{.}25$ kg of steam at $3\mathrm{.}5$ MPa $,$ superheated by $7\mathrm{.}4C.$ Now the steam loses heat to

the surroundings and the piston moves down, hitting a set of stops at which point the cylinder contains saturated liquid

water. The cooling continues until the cylinder contains water at $200C.$

a$)$ Find the final pressure and quality of the mixture in kPa

B$)$ Determine the boundry work $($Wb$,$out$)$ in kJ

C$)$ Determine the amount of heat transfer when the piston first hits the stops $($Qin$,1-2)$ in kJ

D$)$ Determine the total heat transfer $($Qin$,1-3)$ in kJ