4) Melting point of zinc is 425°C. Standard entropy of zinc at 25°C is 40 J/molK. What is the change in entropy when zinc is heated from 25°C to 725°C? What is the absolute entropy of zinc at 725°C? AHm,Zn = 7000 J/mol, Cp(Zn.s) = 20 + 0.001×T J/mol.K, Cp(Zn.) = 30 J/mol.K

4) Melting point of zinc is 425°C. Standard entropy of zinc at 25°C is 40 J/molK. What is the change in entropy when zinc is heated from 25°C to 725°C? What is the absolute entropy of zinc at 725°C? AHm,Zn = 7000 J/mol, Cp(Zn.s) = 20 + 0.001×T J/mol.K, Cp(Zn.) = 30 J/mol.K

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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Question

14) Melting point of zinc is 425°C. Standard entropy of zinc at 25°C is 40 J/molK. What is the
change in entropy when zinc is heated from 25°C to 725°C? What is the absolute entropy of
zinc at 725°C? AHm.Zn = 7000 J/mol, Cp(zn,s) = 20 + 0.001×T J/mol.K, Cp(Zn,l) = 30 J/mol.K

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