To reach thermodynamic equilibrium under certain constraints, some state functions need to be maximized. Among the following, which one should be maximized? A. The enthalpy, H B. The internal energy, U C. The entropy, S a spontaneous process A. It is reversible. B. It is irreversible. C. It can be reversible or irreversible depending on whether equilibrium is maintained throughout the process. D. It can be reversible or irreversible depending on the value of ∆?. Justify all the alternatives.

Chemistry by OpenStax (2015-05-04)
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Author:Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark Blaser
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Chapter16: Thermodynamics
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Problem 10E: Consider the system shown in Figure 16.9. What is the change in entropy for the process where the...
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To reach thermodynamic equilibrium under certain constraints, some state functions need to be maximized. Among the following, which one should be maximized?
A. The enthalpy, H
B. The internal energy, U
C. The entropy, S

a spontaneous process
A. It is reversible.
B. It is irreversible.
C. It can be reversible or irreversible depending on whether equilibrium is maintained throughout the process.
D. It can be reversible or irreversible depending on the value of ∆?.

Justify all the alternatives.

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