Question: Problem 5 At p=1.0 bar certain substance X has melting point temperature of Tm=251.6K with fusH=11.71kJmol1, and boiling point temperature of 333.7K and vapH= 24.23kJmol1.

Problem 5 At p=1.0 bar certain substance X has melting point

Problem 5 At p=1.0 bar certain substance X has melting point temperature of Tm=251.6K with fusH=11.71kJmol1, and boiling point temperature of 333.7K and vapH= 24.23kJmol1. At the same pressure the molar heat capacities of X are Cp,m(s)= 115.6 J K1mol1,Cp,m(liq)=128.9JK1mol1, and Cp,m(g)=52.7JK1mol1, that may be assumed independent of temperature. What is the change in entropy of a sample of 1.05mol of X in the transformation from T1=240.0K to T2=415.0K at constant pressure of 1.0 bar

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