A rigid metallic vessel is divided into two parts by a partition. Part \(A\) contains \(1 \mathrm{~kg}\) of steam at 3.4 bar dry and saturated. Part \(B\) contains \(2 \mathrm{~kg}\) of steam at 6.8 bar having 0.8 dryness fraction. The partition is removed and the pressure in the vessel after steady state is found to be 4.8 bar Calculate \((a)\) volume of vessel, \((b)\) state of steam at 4.8 bar, and \((c)\) heat interchange between steam and the surrounding walls of vessel.