(Solved): A \( 3 \mathrm{~m}^{3} \) rigid tank contains \( 10 \mathrm{~kg} \) of water at \( 4 \mathrm{bar} \ ...

A \( 3 \mathrm{~m}^{3} \) rigid tank contains \( 10 \mathrm{~kg} \) of water at \( 4 \mathrm{bar} \). The tank is now heated, and the pressure reaches to 7 bar. Determine: a) the initial temperature b) the final temperature c) the work done during this process \( (\mathrm{kJ} \) ). d) the total heat transfer during this process \( (\mathrm{kJ}) \). e) show the process on P-v and T-v diagrams with respect to saturation lines.