The standard entropy of Pb(s) at 298.15 K is 64.80 J K -1 mol - 1 .

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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

Cp (Pb,s) J mol- K- T 22.13 + 0.01172+1.00 x 10-3 K !! K?

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 Î”H for the transformation Pb(s, 25.0°C) †’ Pb(l, 725°C).

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Physical Chemistry

ISBN: 978-0321812001

3rd edition

Authors: Thomas Engel, Philip Reid

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Question Posted: Apr 27, 2018 01:18 AM

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The standard entropy of Pb(s) at 298.15 K is 64.80 J K -1 mol - 1 .

Question:

Cp (Pb,s) J mol- K- T 22.13 + 0.01172+1.00 x 10-3 K !! K?

Step by Step Answer:

a b S Pb 199815 K SPb s 29815 K 99815 60055 S 29815 6...View the full answer

Physical Chemistry

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