Question

A rectangular box is divided into three spaces that are separated by two barriers. The first space
constitutes half the volume of the box, while the second and third spaces each constitute one quarter of
the volume. Initially, 2 moles of oxygen are placed in the first space, 1 mole of nitrogen is in the second
space, and 1 mole of argon is placed in the final space. After the system is setup, the partitions are
removed and the gases are allowed to mix. Calculate the ΔG of mixing for this system. Note, the
temperature is uniform everywhere (as is the total pressure). You may assume the gases behave ideally.

Answer 1