The ionization constant for water is 1.1410-15 at 0 oC and 9.6010-14 at 60.0 oC. i) Calculate the value of ΔH for the ionization of water over this temperature range. ii) Calculate the value of Δ G at 60.0 oC. iii) Calculate the value of ΔS for the ionization of water over this temperature range (using any values you obtained in i and ii), and comment on its sign. Answer choices for iii: a) A specific value cannot be determined, but it should be positive, which would imply that there is an increase in order, which could result from the hydronium and hydroxide ions structuring the H2O molecules around them due to intermolecular forces. b) A specific value cannot be determined, nor can its sign be predicted. c) -81.3 J/molK; the negative value implies that there is an increase in order, which could result from the hydronium and hydroxide ions structuring the H2O molecules around them due to intermolecular forces. d) 81.3 J/molK; the positive value implies that there is an increase in order, which could result from the hydronium and hydroxide ions structuring the H2O molecules around them due to intermolecular forces. e) A specific value cannot be determined, but it should be negative, which would imply that there is an increase in order, which could result from the hydronium and hydroxide ions structuring the H2O molecules around them due to intermolecular forces.

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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The ionization constant for water is 1.14*10^-15 at 0 ^oC and 9.60*10^-14 at 60.0 ^oC.

i) Calculate the value of ΔH for the ionization of water over this temperature range.

ii) Calculate the value of Δ G at 60.0 ^oC.

iii) Calculate the value of ΔS for the ionization of water over this temperature range (using any values you obtained in i and ii), and comment on its sign.

Answer choices for iii:

a) A specific value cannot be determined, but it should be positive, which would imply that there is an increase in order, which could result from the hydronium and hydroxide ions structuring the H2O molecules around them due to intermolecular forces.

b) A specific value cannot be determined, nor can its sign be predicted.

c) -81.3 J/mol*K; the negative value implies that there is an increase in order, which could result from the hydronium and hydroxide ions structuring the H2O molecules around them due to intermolecular forces.

d) 81.3 J/mol*K; the positive value implies that there is an increase in order, which could result from the hydronium and hydroxide ions structuring the H2O molecules around them due to intermolecular forces.

e) A specific value cannot be determined, but it should be negative, which would imply that there is an increase in order, which could result from the hydronium and hydroxide ions structuring the H2O molecules around them due to intermolecular forces.

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