Equilibrium and Stability Criteria in Chemical Engineering Systems
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Explore the equilibrium and stability criteria in one-component systems, understanding the balance for isolated systems and moving fluids. Learn the fundamentals of stability through entropy and energy considerations. Investigate the criteria for constant temperature, volume, and pressure.
Equilibrium and Stability Criteria in Chemical Engineering Systems
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Presentation Transcript
Chapter 5. Equilibrium and Stability in one Component Systems 國立雲林科技大學化工系 李 榮 和
V = Constant Q = 0 李 榮 和 (The Criteria for Equilibrium: V = U= Constant)
The equilibrium and stability Criteria Equilibrium: dS > 0 ; S = Maxmium Stable: d2S < 0 李 榮 和
The Equilibrium Criteria for moving fluid: T = P = M = Constant , G = Minimum 李 榮 和
(dN = dV = 0) (dU = dN = 0) (dU = dV = 0) 李 榮 和
From q1 < 0 李 榮 和
From q2 < 0 李 榮 和
Prove Cv > 0 at Constant V T = 873.75 V = 0.2933 U = 3799.4 李 榮 和