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CHEM 4010 Spring, 2008 Use the
following data to calculate the standard entropy of gaseous ammonia at 298.15 K:
Dfus H =
5.655 kJ mol-1 at the melting point of 195.42 K , and Dvap H = 23.351. kJ mol- 1 at the boiling
point of 239.74 K. Assume that the heat capacity of the liquid has a constant
value of 74.85 J K-1 mol-1, and that the heat capacity of
the gas is constant at 35.52 J K-1 mol-1.
The heat capacity of solid ammonia is given as a function of temperature
below. Compare your result with the
value given in Table 2.7 of the Textbook.
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