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A thermally insulated container is divided by a partition into two compartments, the right compartment having...

A thermally insulated container is divided by a partition into two compartments, the right compartment having a volume 4 times as large as the left compartment. The left compartment contains 2 moles of an ideal gas A at 25 °C and 0.8 atm. The right compartment contains 2 molesof an ideal gas B at 25 °C. The partition is removed and gases are mixed.

Calculate the entropy change in the mixing process.

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