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Feb 3, 2013 at 1:08 comment added Niklas Rosencrantz Thanks for the answer. But are you telling me that the real process of for instance melting ice is not reversible? Would not freezing the melted ice reverse the change? Or reactions with water at constant tempareature to make the example easier.
Feb 3, 2013 at 1:02 history answered Paul J. Gans CC BY-SA 3.0