The standard entropy of Pb(s) at 298.15 K is 64.80 J K -1 mol - 1 .
Question:
The standard entropy of Pb(s) at 298.15 K is 64.80 J K-1mol-1. Assume that the heat capacity of Pb(s) is given by
The melting point is 327.4°C and the heat of fusion under these conditions is 4770. J mol-1. Assume that the heat capacity of Pb(l) is given by
a. Calculate the standard entropy of Pb(l) at 725°C.
b. Calculate ΔH for the transformation Pb(s, 25.0°C) †’ Pb(l, 725°C).
Transcribed Image Text:
Cp (Pb,s) J mol- K- T 22.13 + 0.01172+1.00 x 10-3 K !! K?
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a b S Pb 199815 K SPb s 29815 K 99815 60055 S 29815 6...View the full answer
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