Using the thermodynamic data provided below, calculate the standard change in entropy when one mole of calcium carbonate is dissolved in water. Calculate the ΔGo and predict whether the solubility of calcium carbonate increase or decrease if the temperature of the system is increased? a.73.4 kJ mol-1; solubility increases with increasing temperature b.47.6 kJ mol-1; solubility increases with increasing temperature c.47.6 kJ mol-1; solubility decreases with increasing temperature d.73.4 kJ mol-1; solubility is unaffected by temperature

Using the thermodynamic data provided below, calculate the standard change in entropy when one mole of calcium carbonate is dissolved in water. Calculate the ΔGo and predict whether the solubility of calcium carbonate increase or decrease if the temperature of the system is increased? a.73.4 kJ mol-1; solubility increases with increasing temperature b.47.6 kJ mol-1; solubility increases with increasing temperature c.47.6 kJ mol-1; solubility decreases with increasing temperature d.73.4 kJ mol-1; solubility is unaffected by temperature

Fundamentals Of Analytical Chemistry

9th Edition

ISBN:9781285640686

Author:Skoog

Publisher:Skoog

Chapter7: Statistical Data Treatment And Evaluation

Section: Chapter Questions

Problem 7.9QAP

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Question

1.Using the thermodynamic data provided below, calculate the standard change in entropy when one mole of calcium carbonate is dissolved in water. Calculate the ΔG^o and predict whether the solubility of calcium carbonate increase or decrease if the temperature of the system is increased?

a.73.4 kJ mol^-1; solubility increases with increasing temperature

b.47.6 kJ mol^-1; solubility increases with increasing temperature

c.47.6 kJ mol^-1; solubility decreases with increasing temperature

d.73.4 kJ mol^-1; solubility is unaffected by temperature

2. Without reference to a table, arrange these reactions according to increasing ΔS.

I. CH₄(g) + H₂O(g) → CO(g) + 3H₂(g)

II. C(s) + O₂(g) → CO₂(g)

III. H₂O₂(l) → H₂O(l) + ¹/₂O₂(g)

a.III < II < I
b.I < III < II
c.II < III < I
d. II < I < III

S; (J K1 mol1)
Compound
CaCO3(s)
Ca2*(aq)
CO3? (aq)
AH? (kJ mol-1)
-1207
92.9
-542.8
-53.1
-677.1
-56.9

Science that deals with the amount of energy transferred from one equilibrium state to another equilibrium state.

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