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Entropy Change - Irreversible Isothermal Compression
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[QUOTE="Chestermiller, post: 5494920, member: 345636"] Is the change in internal energy zero? I assume you are using the form of the first law in which work done on the system is positive and work done by the system is negative: ##\Delta U=q+w##. Correct? I wouldn't say it in those words. Instead, I would say that, since the change in internal energy is zero, the work done on the system is equal to the heat removed from the system. Your equation for the work is correct, if work done on the system is taken as positive. [/QUOTE]
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Entropy Change - Irreversible Isothermal Compression
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