Chapter 3:
                        31, 32, 33, 34, 36, 37, 38, 40, 42

Hints/comments:

3.37: Note that after removal from the bath both the frozen and liquid benzene are still at 5.5 deg. C.

3.40: There are a couple of ways to do this. In general what you need to do is integrate C_p(T) dT/T from 0 to 172.12 K. Use a cubic function for C_p(T) between 0 K and the lowest temperature data point and then either fit the remaining data to a polynomial function or interpolate it with a program like MathCad. Then integrate. Remember not to use the point at 172.12 K where Cl₂ melts and C_p(T) is discontinuous. The solution manual value is S^o = 107.75 J K^-1 mol^-1. Note: I obtain 108.0 J K^-1 mol^-1 using a polynomial fit to C_p.