You have two containers of oxygen gas (O2). One container is…
You have two containers of oxygen gas (O2). One container is filled with 1 mol of oxygen, the other container is filled with 2 mols of oxygen. The pressure of the gas in both containers is 1 bar and the temperature is 25 ºC. The change in entropy due to mixing, when the gas in both containers is combined into a single container at the same temperature and pressure is zero.