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Introductory Physics Homework Help
Irreversible adiabatic process - is the entropy change zero?
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[QUOTE="Ortanul, post: 5383637, member: 582293"] [h2]Homework Statement [/h2] A well insulated container consists of two equal volumes separated by a partition - one half an ideal gas while the other is a vacuum. The partition is removed, and the gas expands. What is the entropy change per mole? [h2]Homework Equations[/h2] dS = dQ[SUB]rev[/SUB]/T S/R = Cp/R dT/T - ln(P/P[SUB]0[/SUB]) [h2]The Attempt at a Solution[/h2] As the process is irreversible, the entropy change should be non-zero even though there is no change in heat. However, after I perform the calculation with the aforementioned equation, I got zero as my final answer. [ATTACH=full]96098[/ATTACH] I'm extremely confused about my result because I can't find any mistake in my calculation, while I do believe that the change should be non-zero. Any help would be highly appreciated! [/QUOTE]
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Introductory Physics Homework Help
Irreversible adiabatic process - is the entropy change zero?
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