The standard molar entropy of NH3 is 192.45 J K1 mol at 298K, and its heat capacity is given by the equation Coma +bT +c/T2 with the coefficients given in the table below. Calculate the standard molar entropy of NH3 at 100 °C p,m 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, Cp,m/U K-1mol-1) a + bT + c/T2 b/(10-3 K-) 25.1 c/(10 K2) a NH3 29.75 -155

Question
The standard molar entropy of NH3 is 192.45 J K1 mol at 298K, and its heat capacity is given by the
equation Coma +bT +c/T2 with the coefficients given in the table below. Calculate the standard molar
entropy of NH3 at 100 °C
p,m
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, Cp,m/U K-1mol-1) a + bT + c/T2
b/(10-3 K-)
25.1
c/(10 K2)
a
NH3
29.75
-155

Image Transcription

The standard molar entropy of NH3 is 192.45 J K1 mol at 298K, and its heat capacity is given by the equation Coma +bT +c/T2 with the coefficients given in the table below. Calculate the standard molar entropy of NH3 at 100 °C p,m 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, Cp,m/U K-1mol-1) a + bT + c/T2 b/(10-3 K-) 25.1 c/(10 K2) a NH3 29.75 -155

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