Hydrogen (H2) at 77* C, 4bar enters an insulated chamber at steady state, where it mixes with nitrogen (N2) entering as a separate stream at 255* C, 4 bar. The mixture exits at 3.8 bar with molar mass analysis 75% H2, 25% N2. Kinetic and potential engergy effects can be ignored. Determine
(a) The temerature of the exiting mixture, in *C.
(b) The rate at which entropy is produced, in kJ/K per kmol of mixing exiting.