Question

The standard molar entropy of NH3 is 192.45 J K-1 mol-1 at 298K, and its heat capacity is given by the equation Cp,m = a +bT +c/T2 with the coefficients given in the table below. Calculate the standard molar entropy of NH3 at 100 ℃.

Please explain as much as possible. Why did you use the equation? Or what conditions did you see from the question? etc.

Table 1: Temperature variation of molar heat capacities, C.m/U K-mol-1) = a + bT + c/T2
cl(10 K2)
b/(103 K-1)
a
NH3
29.75
25.1
-155
Expand
Transcribed Image Text

Table 1: Temperature variation of molar heat capacities, C.m/U K-mol-1) = a + bT + c/T2 cl(10 K2) b/(103 K-1) a NH3 29.75 25.1 -155

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