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is given by and that the result given in Problem 216 follows.
A. In Problem 214, ethane is heated at constant volume, so (assuming ideal behavior) Likewise, in Problem 215, the system is kept at constant pressure and so These values correspond to those shown in the diagram. Now, path C represents an isothermal
process. Because we are assuming ideal behavior,
, which means that
. Then we can write as (Equation 20.22) Note that path A is equivalent to the sums of paths B and C, so
and
, we can write . Because an...
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 Fall '08
 Bersuker
 Physical chemistry, Mole, pH

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