Two moles of oxygen gas, which can be regards as ideal with molar heat capacity at constant pressure (Cp,m) at 29.4 J K1 mol1 (independent of temperature), are maintained at 273 K in a volume (V;) of 11.35 dm³ at 4 atm. The gas is heated reversibly to 373 K at constant volume. Isothermal irreversible OR revisable expansion? (a) How much work (w) (in unit J) is done on the system? (b) What is the increase in internal energy (AU) (in unit J)? (c) How much heat (q) (in unit J) is added to the system? (d) What is the final pressure (Pt) (in unit atm)? (e) What is the final value of PV [(PV);] (in unit J)? (f) What is the increase in enthalpy (AH) (in unit J)? n = 2 mol CP,m = 29.4 J K1 mol1 Tj = 273 K Tf = 373 K Vi = Vf = 11.35 dm³ Pi = 4 atm %3D

Two moles of oxygen gas, which can be regards as ideal with molar heat capacity at constant pressure (Cp,m) at 29.4 J K1 mol1 (independent of temperature), are maintained at 273 K in a volume (V;) of 11.35 dm³ at 4 atm. The gas is heated reversibly to 373 K at constant volume. Isothermal irreversible OR revisable expansion? (a) How much work (w) (in unit J) is done on the system? (b) What is the increase in internal energy (AU) (in unit J)? (c) How much heat (q) (in unit J) is added to the system? (d) What is the final pressure (Pt) (in unit atm)? (e) What is the final value of PV [(PV);] (in unit J)? (f) What is the increase in enthalpy (AH) (in unit J)? n = 2 mol CP,m = 29.4 J K1 mol1 Tj = 273 K Tf = 373 K Vi = Vf = 11.35 dm³ Pi = 4 atm %3D