The temperature-dependent form of the extended Debye-Hückel equation is (-1.825 × 10°) (€T) iz² Vu log (y) 1 + 2.00 eT where y is the activity coefficient, e is the dielectric constant of water (a unitless quantity), T is the temperature (in Kevin), z is the charge of the ion, µ is the ionic strength (in moles per liter), and a is the ion size parameter (in picometers). The temperature-dependence of the dielectric constant is given by the equation € = 79.755e(-4.6x10-³)(T–293.15) where the temperature is in Kelvin. What is the value of the activity coefficient of Pb2+ at 85.00 °C when the ionic strength is 0.060 M?
The temperature-dependent form of the extended Debye-Hückel equation is (-1.825 × 10°) (€T) iz² Vu log (y) 1 + 2.00 eT where y is the activity coefficient, e is the dielectric constant of water (a unitless quantity), T is the temperature (in Kevin), z is the charge of the ion, µ is the ionic strength (in moles per liter), and a is the ion size parameter (in picometers). The temperature-dependence of the dielectric constant is given by the equation € = 79.755e(-4.6x10-³)(T–293.15) where the temperature is in Kelvin. What is the value of the activity coefficient of Pb2+ at 85.00 °C when the ionic strength is 0.060 M?
Introduction to Chemical Engineering Thermodynamics
8th Edition
ISBN:9781259696527
Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Publisher:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Chapter1: Introduction
Section: Chapter Questions
Problem 1.1P
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Size of the ion is 4.5X10^-10 m
Transcribed Image Text:The temperature-dependent form of the extended Debye-Hückel equation is
(-1.825 x 10°) (eT)¯i z² Vu
log (y)
1 +
2.00 VeT
where y is the activity coefficient, e is the dielectric constant of water (a unitless quantity), T is the temperature (in
Kevin), z is the charge of the ion, µ is the ionic strength (in moles per liter), and a is the ion size parameter (in
picometers). The temperature-dependence of the dielectric constant is given by the equation
€ = 79.755e(-4.6x10-³)(T–293.15)
where the temperature is in Kelvin. What is the value of the activity coefficient of Pb²+ at 85.00 °C when the ionic
strength is 0.060 M?
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