Table 4: Selected thermochemical values AH+° (kJ/mol) Sº (J/K-mol) K+ (aq) -252.4 102.5 NO3(aq) -207.4 146.4 KNO3(s) -494.6 133.1 AH accepted = (include units) AS accepted = (include units)

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Chapter1: Chemical Foundations
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1.) Use the data in table 4 to calculate the ΔH⁰ and ΔS⁰ for the dissolution of KNO3. Show your work
with annotated calculations.

2.) How does the spontaneity of the process relate to the Ksp?

Table 4: Selected thermochemical values
AH+° (kJ/mol)
Sº (J/K-mol)
K+ (aq)
-252.4
102.5
NO3(aq)
-207.4
146.4
KNO3(s)
-494.6
133.1
AH accepted =
(include units)
AS accepted =
(include units)
Transcribed Image Text:Table 4: Selected thermochemical values AH+° (kJ/mol) Sº (J/K-mol) K+ (aq) -252.4 102.5 NO3(aq) -207.4 146.4 KNO3(s) -494.6 133.1 AH accepted = (include units) AS accepted = (include units)
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