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(a) Derive a general relation for (E/p)T,n for electrochemical cells employing reactants

Physical Chemistry | 8th Edition | ISBN: 9780716787594 | Authors: Peter Atkins, Julio de Paula ISBN: 9780716787594 348

Solution for problem 7.21 Chapter 7

Physical Chemistry | 8th Edition

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Physical Chemistry | 8th Edition | ISBN: 9780716787594 | Authors: Peter Atkins, Julio de Paula

Physical Chemistry | 8th Edition

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Problem 7.21

(a) Derive a general relation for (E/p)T,n for electrochemical cells employing reactants in any state of matter. (b) E. Cohen and K. Piepenbroek (Z. Physik. Chem. 167A, 365 (1933)) calculated the change in volume for the reaction TlCl(s) + CNS(aq)TlCNS(s) + Cl(aq) at 30C from density data and obtained rV = 2.666 0.080 cm3 mol1. They also measured the emf of the cell Tl(Hg) | TlCNS(s) |KCNS_KCl | TlCl | Tl(Hg) at pressures up to 1500 atm. Their results are given in the following table: p/atm 1.00 250 500 750 1000 1250 1500 E/mV 8.56 9.27 9.98 10.69 11.39 12.11 12.82 From this information, obtain (E/p)T,n at 30C and compare to the value obtained from rV. (c) Fit the data to a polynomial for E against p. How constant is (E/p)T,n? (d) From the polynomial, estimate an effective isothermal compressibility for the cell as a whole.

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Structure and bonding ▯ Achemical bond consists of a shared electron pair in a bonding orbital formed by overlap of orbitals on the connected atoms ▯ Formed by combination of two atoms each with a singly occupied orbital ▯ Or by combination of a filled orbital on one atom with an empty orbital on another ▯...

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Chapter 7, Problem 7.21 is Solved
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Textbook: Physical Chemistry
Edition: 8
Author: Peter Atkins, Julio de Paula
ISBN: 9780716787594

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(a) Derive a general relation for (E/p)T,n for electrochemical cells employing reactants

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