A 12 kg iron block initially at 350 degC is quenched in an insulated tank that contains 100 kg of water at 22 degC. Assuming the water that vaporizes during the process condenses back into the liquid phase inside the tank, determine the entropy change of the universe for this process.
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HINTS:
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* A lot of great hints are given in the comments from Dr. B's course!
* You may need to carefully apply the 1st law, and then use one of the Gibbs relations to evaluate deltaS.
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ANSWERS:
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deltaS_univ = 1.9234 kJ/K
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