Suppose that the external pressure on each cylinder is reduced to half of atmospheric pressure while each gas is maintained at constant temperature.  The initial volumes of O2 and N2 are 24.47L. The final volumes of both gases are 12.235L each.  Calculate the change in entropy for each gas and of the composite system.

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Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
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Suppose that the external pressure on each cylinder is reduced to half of atmospheric pressure while each gas is maintained at constant temperature. 

The initial volumes of O2 and N2 are 24.47L. The final volumes of both gases are 12.235L each.

 Calculate the change in entropy for each gas and of the composite system.

Assume that each gas can be modeled as an ideal gas. Consider the following:

- a piston cylinder containing 1 mol of O₂ (g).
- a piston cylinder containing 1 mol of N₂ (g).

Each gas is prepared in a separate container at room temperature and atmospheric pressure.
Transcribed Image Text:Assume that each gas can be modeled as an ideal gas. Consider the following: - a piston cylinder containing 1 mol of O₂ (g). - a piston cylinder containing 1 mol of N₂ (g). Each gas is prepared in a separate container at room temperature and atmospheric pressure.
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