An insulated rigid tank is divided into two compartments by a partition. One compartment contains 4 kmol of O2, and the other compartment contains 5 kmol of CO2. Both gases are initially at 25oC and 150 kPa. The partition is then removed and the two gases are allowed to mix. Assuming the surroundings are at 25oC and both gases behave as ideal gases, determine
(a) The entropy change (ΔS) and
(b) The energy destruction (I) associated with this process.