MSE 308
Thermodynamics of Materials
Dept. of Materials Science & Engineering
Spring 2005/Bill Knowlton
Problem Set 7
1. The following reaction:
Pb + ½ O2 = PbO
is on page 119-123 of Gaskell. Repeat this problem using the approach:
∆H rxn = ∑ H prod . − ∑ H react .
by doing the following:
a. Provide a list of materials parameters necessary to do the problem and similar to
the one I handed out in class.
b. Draw a schematic of H versus T diagram.
c. Determine ∑ H prod . at a temperature of 1300 K.
d. Determine
∑H
react .
at a temperature of 1300 K.
e. Determine ∆H rxn at a temperature of 1300 K.
2. The following reaction:
UF4 + 2 Mg = 2MgF2 + U
is on page 137-142 of Gaskell. Repeat this problem using the approach:
∆H rxn = ∑ H prod . − ∑ H react .
by doing the following. First, provide a list of materials parameters necessary to do the
problem and similar to the one I handed out in class and second, draw a schematic of H
versus T diagram. Then:
a. Determine ∑ H prod . at a temperature of 1118 K.
b. Determine
∑H
react .
at a temperature of 1118 K.
c. Determine ∆H rxn at a temperature of 1118 K.
3. For either reaction in problem 1 or 2, provide a solution to determining ∆S rxn
4. For either reaction in problem 1 or 2, provide a solution to determining ∆Grxn
Chapter 6 problems in Gaskell: 6.1