We have used Raoult's law to obtain the expression for the freezing point shift of a solution: RT; :2XB AT¡ Afus Him If the activity of the solvent is given instead by aa = kA XA and the vapor pressures of the pure solvent and solute are P: and P, what is the new equation for ATf in terms of the mole fraction of solute? RT; "In kA Afus HĂm AT¡ = RT;2(In kA- XB) Afus HAm AT¡ = RT;2 In kA Afus HĂm AT¡ RT;²XAXB Afus HÂm Ο ΔΤ- RT;2(In ka-XB) ΔΤ Afus HAm RT;'XAXB Ο ΔΤ 2 fus HAm

Fundamentals Of Analytical Chemistry
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ISBN:9781285640686
Author:Skoog
Publisher:Skoog
Chapter7: Statistical Data Treatment And Evaluation
Section: Chapter Questions
Problem 7.26QAP
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which of the following is the correct answer in the image provided and explain your reason for the choice.

We have used Raoult's law to obtain the expression for the freezing point shift of a solution:
RT;²XB
Afus HAm
If the activity of the solvent is given instead by
aa = kĄ XA
and the vapor pressures of the pure solvent and solute are P and P, what is the new
equation for AT; in terms of the mole fraction of solute?
21n kA
O AT¡
RT;
Afus HAm
RT;2(In kA- XB)
Afus HAm
Ο ΔΤΙ
RT;² In kA
Afus HAm
2
ΔΤ
RT;²XẠXB
AT¡
Afus HAm
RT;2(In kA- XB)
O AT¡
fus HĂm
RT;²XAXB
AT¡ =
Afus HÂm
Transcribed Image Text:We have used Raoult's law to obtain the expression for the freezing point shift of a solution: RT;²XB Afus HAm If the activity of the solvent is given instead by aa = kĄ XA and the vapor pressures of the pure solvent and solute are P and P, what is the new equation for AT; in terms of the mole fraction of solute? 21n kA O AT¡ RT; Afus HAm RT;2(In kA- XB) Afus HAm Ο ΔΤΙ RT;² In kA Afus HAm 2 ΔΤ RT;²XẠXB AT¡ Afus HAm RT;2(In kA- XB) O AT¡ fus HĂm RT;²XAXB AT¡ = Afus HÂm
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