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名前：Earle日付：2014/12/30 20:24:03
How much is a Second Class stamp? buy desloratadine online A more formal definition for entropy as heat moves around a system is given in the first of the equations. The infinitesimal change in entropy of a system (dS) is calculated by measuring how much heat has entered a closed system (ôQ) divided by the common temperature (T) at the point where the heat transfer took place.
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