algorithm assignment 2

1. (a) Is the process of KNO3 dissolving in water spontaneous at all temperatures studied?

Briefly explain.

(b) Is the reaction in (a) one that gives off heat or requires heat? Briefly explain.

(c) Is your value of ΔS° consistent with the expected change in disorder for the reaction in

Equation 1? Briefly explain.

2. A few compounds exist whose solubility decreases as the temperature increases. How

would the values for ΔG°, ΔH°, and ΔS° for these reactions be different from those values

observed for the solubility of KNO3? Briefly explain.

3. (a) Why must the temperature be measured when only a small amount of solid has been

formed?

(b) What could not be calculated if the temperature was measured after a large quantity of

crystals precipitated?

 

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