1. The heat of fusion of water is 6.02 kJ/mol (i.e., ice water). What is the entropy change for this process?

1. The heat of fusion of water is 6.02 kJ/mol (i.e., ice ® water). What is the entropy

change for this process?

2. One of the following lists has the entropy of the compounds increasing (from low to

high, left to right). Which one is it?

a. CH3OH (l), C2H5OH (l), C3H7OH (l)

b. LiCl (s), Mn2O7 (s), MgBr2 (s)

c. H2O (g), H2O (l), H2O (s)

d. CaI2 (s), CaF2 (s), CaCl2 (s)

e. KCl (s), RbCl (s), LiCl (s)

3. The following relationships regarding entropy (S) and the number of microstates in a

system (W) are true at 0 K:

a. S = 0, W = 0

b. S = 1, W = 0

c. S = 0, W = 1

d. S = 213.7, W = 7.69 x 1034

e. S = -213.7, W = 7.69 x 1034

4. What is the ΔSuniverse at standard state and 298 K for the combustion of methane

(shown below as an unbalanced reaction)?

CH4 (g) + O2 (g) ® CO2 (g) + H2O (g)