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# #25 - Chapter 18 Entropy Free Energy and Equilibrium...

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Chapter 18: Entropy, Free Energy, and Equilibrium Spontaneous Processes, Entropy, The three laws of thermodynamics (Sec. 18.1 18.4)

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A. Energy, First Law of Thermodynamics and Enthalpy (Review of Sec. 6.3 and 6.4) Thermodynamics is the scientific study of the interconversion of heat and other forms of energy. State functions are properties that are determined by the state of the system, regardless of how that condition was achieved. D E = E final - E initial D P = P final - P initial D V = V final - V initial D T = T final - T initial energy , pressure, volume, temperature Potential energy of hiker 1 and hiker 2 is the same even though they took different paths.
A. Energy, First Law of Thermodynamics and Enthalpy (Review of Sec. 6.3 and 6.4) D E universe = D E system + D E surroundings = 0 or D E system = - D E surroundings First law of thermodynamics : The energy can be converted from one form to another, but cannot be created or destroyed. D E = q + w D E is the change in internal energy of a system q

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#25 - Chapter 18 Entropy Free Energy and Equilibrium...

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