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Class #8 PHYS-245 Introduction to Statistical Mechanics and Thermodynamics Dept. of Physics & Astronomy Feb 10th 2023 1 1
2 Previously on PHYS245 2nd law of thermo 2
3 Reversible vs irreversible Reversible Given , it is possible to go • In a pV diagram, is reached along the same path • At each point in the path, the system is in thermal equilibrium • When reaching , the surroundings return to their original state • No dissipative effects (friction, etc) 3
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