MAT E301 Lecture Notes - Lecture 6: Carno, Avaya

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Natural processes ---- usually irreversible
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Gas expands into a vacuum
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A metal bar with different temperatures at the two ends,
eventually the two ends will become the same temperature
(reversible)
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CH4 + 2*O2 ------- CO2 + 2*H2O
Methane gas burns spontaneously when ignited
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Ice melts at 1 atm and temperature > 0 0C
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Spontaneous Processes
"Spontaneous Process" - a process which involves a spontaneous
change of a system from one state to another
Entropy - Cannot cycle
Entropy, 2nd and 3rd Laws of Thermo.
September 17, 2015
9:43 AM
MAT E 301 Page 1
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