MSE 260. Solution Set for Practice Exam 1.
1. (20 points)
At 1 atmosphere, the equilibrium freezing point of water is 0C. At that temperature the latent
heat of melting of ice is Hmelt = 6030 J/mol.
Given that Cp(ice) = 38 J/deg.mol ; Cp(water) = 76 J/deg
MSE 260, Problem Set 3. 1/31/05
Due: 5pm Wednesday 2/9/05 (in my mailbox)
I will be away Monday Feb. 7 and Wed. Feb 9 there will be no class either day (we
will find a time to make up these classes). Therefore I have added three extra problems
to this pro
MSE 260 Solution Set 6. Solution Thermodynamics:
Calculate the heat required to form a Cu-Ag liquid solution at 1356K starting with 1 mol
and Cu and 1 mol of Ag at 298K. At 1356K the enthalpy of mixing for a Cu-Ag liquid solution is
given by HM = -20,5
MSE 260 Problem Set 6. 3/22/05: DUE Monday 3/28/05
Calculate the heat required to form a Cu-Ag liquid solution at 1356K
starting with 1 mol and Cu and 1 mol of Ag at 298K. At 1356K the enthalpy of
mixing for a Cu-Ag liquid solu
MSE 260 Problem Set 5. 3/15/05: DUE Monday 3/21/05
Introductory Solution Thermodynamics.
A liquid solution of Zn and Cd is ideal. At 900K the vapor pressure of
pure Zn is 0.025 atm, the vapor pressure of pure Cd is 0.117 atm.
Calculate the composit
MSE 260 Problem Set 9. 4/12/02: DUE before class Friday 4/19/02
Binary Phase equilibria,
Note: The first two problems are the optional problems from Set 8.
1. Two metals A and B show no solubility in the solid state, however mixing in
the liquid is ideal.
MSE 260 Second Practice Exam.
1. (18 points)
One mole of hydrogen gas, one mole of iodine vapor, and one mole of HI gas are introduced into
a container at a total pressure of 1 atmosphere. At equilibrium the partial pressure of HI in the
mixture is five t
MSE 260. 1st Mid-Semester Exam; Solutions.
R = 8314 J/deg.mole = 0082 L.atm/deg.mole
1. (14 points)
1 mole of solid Cu at 1300K is dropped into a well-insulated large heat reservoir that is
maintained at a temperature of 500K.
Calculate the total entropy
MSE 260 Solution Set 7.
1. The activity coefficients of both components in the CoO-NiO system determined at 450K are given below.
(a) Use the data to fit the behavior of this solution to a regular solution model calculate the interaction parameter.
MSE 260. 2nd Mid-Semester Examination, solutions
1. (17 points)
2 moles of N2 and 2 moles of O2 react at 2400K in a 50 liter vessel to form an equilibrium N2
- O2 - NO mixture. Calculate how much heat is evolved/absorbed.
Data: note you can ignore ANY hea
MSE 260 Solution Set 6.
Solution Thermodynamics (5 problems)
1. A liquid solution of Zn and Cd is ideal. At 900K the vapor pressure of pure Zn is 0.025 atm,
the vapor pressure of pure Cd is 0.117 atm. Calculate the composition of the vapor in
MSE 260. Solutions/grading Exam 1. Wednesday Feb. 24, 2010.
1. (12 points)
3 moles of an ideal gas (Cv = 3R/2) at 500K and 4.5 atmospheres are adiabatically expanded to
1.5 atmospheres. After the expansion the final temperature of the gas is 400K. Calcula
MSE 260. Spring 2008. 1st Mid-Semester Exam. Solutions.
1. 26 points
4 moles of an ideal gas at 600K and 2 atm. are heated, at constant volume, to 1200K. Calculate:
Data: Cp = 5R/2; H298,gas = - 50,000 J/mol; S298,gas = 200 J/deg.mol
(a) the work done by
MSE 260. 2nd Practice Exam; Solutions/key
1. (25 points)
Antimony, Sb, can form three stable oxides; Sb2O5, Sb2O3, and SbO2.
A 4 liter container at 1000K contains 1/2 mole of solid Sb2O5 in equilibrium with 1 mole of
solid SbO2. Given the data below, desc
MSE 260 Solution Set 9
The phase diagram for the binary BaTiO3-SiO2 system is enclosed. Pure BaTiO3 (an
important ferroelectric material) undergoes a phase transition from cubic to hexagonal. Pure
SiO2 also undergoes a solid-solid phase transition from
MSE 260 Problem Set 5. Solutions
1. Will the reaction:
CO(g) + 1/2O2(g) = CO2(g) Go = -271,900 + 87.3T (joules)
reach equilibrium at some temperature if all the reactants and products are in their standard states?
Can you calculate th
MSE 260 Solution Set 8.
Two metals A and B show no solubility in the solid state, however mixing in the liquid is
ideal. The melting point of pure A is 1227oC, pure B melts at 1027oC. The lowest temperature
at which a liquid is stable in the binary sys
MSE 260. 1st Mid-Semester Exam. Monday Feb. 20, 2012.
There are a total of 4 questions on 2 separate pages; apportion your time according to the
maximum points for each one. Think before you calculate!