11.1 The Dissolution Process
Solute-solvent interactions that decide whether a mixture dissolves, and the enthalpy accounting that makes dissolving release or absorb heat.
4 exercises
11.1 Exercise 1
How do solutions differ from compounds? From other mixtures?
11.1 Exercise 3
When KNO3 is dissolved in water, the resulting solution is significantly colder than the water was originally.
(a) Is the dissolution of KNO3 an endothermic or an exothermic process?
(b) What conclusions can you draw about the intermolecular attractions involved in the process?
(c) Is the resulting solution an ideal solution?
11.1 Exercise 5
Indicate the most important types of intermolecular attractions in each of the following solutions:
(a) The solution in the figure.
(b) NO(l) in CO(l)
(c) Cl2(g) in Br2(l)
(d) HCl(g) in benzene C6H6(l)
(e) Methanol CH3OH(l) in H2O(l)
11.1 Exercise 7
Heat is released when some solutions form; heat is absorbed when other solutions form. Provide a molecular explanation for the difference between these two types of spontaneous processes.
Adapted from General Chemistry © 2019 Rice University. Licensed under CC BY 4.0. Sources: Chemistry 2e, Chemistry: Atoms First 2e. Imported at revision 32c7196.