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Spin Saturation Transfer Difference NMR (SSTD NMR): A New Tool to Obtain Kinetic Parameters of Chemical Exchange Processes
Published on: November 12, 2016
Reversible mass exchange between two multicomponent systems of different temperatures.
The European Physical Journal. E, Soft Matter
|May 12, 2009
Summary
Reversible work calculations in nonequilibrium systems are critically examined. This analysis reveals that calculating reversible work is akin to determining the dissipation function for irreversible processes, impacting thermal diffusion coefficient derivations.
Area of Science:
- Physical Chemistry
- Non-equilibrium Thermodynamics
- Transport Phenomena
Background:
- The concept of reversible work is applied in deriving thermal diffusion coefficients in non-equilibrium systems.
- Understanding heat and mass exchange in systems with varying temperatures and pressures is crucial for thermodynamic analysis.
Purpose of the Study:
- To critically examine the concept and application of reversible work in non-equilibrium systems.
- To investigate the relationship between reversible work and the dissipation function in heat and mass exchange processes.
Main Methods:
- Detailed analysis of heat and mass exchange between two multicomponent systems.
- General theoretical considerations.
- Examination of a specific illustrative example.
Main Results:
- Calculating reversible work is demonstrated to be equivalent to calculating the dissipation function for the corresponding irreversible process.
- The study highlights the challenges in deriving thermal diffusion coefficients directly from the dissipation function.
Conclusions:
- The established methods for calculating reversible work in non-equilibrium thermodynamics require critical re-evaluation.
- The direct utility of the dissipation function for obtaining expressions for thermal diffusion coefficients remains unclear.
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