1.1 m3 rigid tank is divided into two equal compartments by a partition. One compartment contains Ne at 22oC and 120 kPa, and the other compartment contains Ar at 50oC and 200 kPa. The partition is then removed, and the two gases are allowed to mix. Heat is lost to the surrounding air at 20oC during this process in the amount of 18 kJ. Determine
(a) The final mixture temperature (Tm)
(b) The final mixture pressure (pm).