An insulated rigid tank that contains 1 kg of CO2 at 100 kPa and 25oC and is

Question:

An insulated rigid tank that contains 1 kg of CO2 at 100 kPa and 25oC and is connected to another insulated rigid tank that contains 1 kg of H2 at 200 kPa and 500oC. The valve connecting the two tanks is opened, and the two gases are allowed to mix. Determine
(a) The final mixture pressure (pm)
(b) Temperature (Tm)
(c) Entropy generated (Sgen) during mixing
(d) Reversible work (Wrev) of mixing if the outside temperature is 25oC. Use the IG mixture model.