Name _ Michigan State University DEPARTMENT OF CHEMICAL ENGINEERING AND MATERIALS SCIENCE ChE 321: Chemical Engineering Thermodynamics Exam 1 Part I, Version A - Open Book, closed notes, 2/20/07, SUBMIT ALL ORIGINAL PAGES. 1. An ideal gas is compressed is
Chapter 2
The Postulates of Thermodynamics
So, as science has progressed, it has been necessary to invent other forms of energy, and indeed an unfriendly critic might claim, with some reason, that the law of conservation of energy is true because we make
Chapter 3
Generalized Thermodynamic Potentials
A theory is the more impressive the greater the simplicity of its premises, the more dierent kinds of things it relates, and the more extended is its area of applicability. Therefore the deep impression which
4200:225 EQUILIBRIUM THERMODYNAMICS SPRING 90 TEST 1 SSN_ 1. Short Answer a) Estimate the change in entropy when one mole of nitrogen is compressed by a piston in a cylinder from 300K and 23 liters/gmol to 400K and 460 liters/gmol.(Cp=7 cal/gmol) b) Draw
Chemical, Biological and Materials Engineering Thermodynamics
by
Prof. Jay D. Schieber Department of Chemical Engineering Illinois Institute of Technology 10 W. 33rd Street Chicago, Illinois 60616 [email protected]
and
Prof. Juan J. de Pablo Department of
Chapter 14 Practice Problem Solutions (P14.1) An equimolar mixture of H2 and CO can be obtained by the reaction of steam with coal. Compute the equilibrium compositions at 550 C based on an equimolar feed of H2, CO, and H2O. The reaction is H2O + CO = H2
Chapter 10 Practice Problem Solutions (P10.5) (a) Perform bubble P calculations 1-CO2, 2- ethylene. For kij = 0 Output from PRMIX.exe bp COMPONENT IS CARBON DIOXIDE ID NO. IS 909 COMPONENT IS ETHYLENE ID NO. IS 201 T(K)= 222.00 P(MPa)= .8725 ZL= .2138E-01
Chapter 9 Practice Problems
(p9.01) The stream from a gas well consists of 90 mol% methane, 5% ethane, 3% propane and 2% n-butane. This stream is flashed isothermally at 233 K and 70 bar. Use the shortcut K-ratio method to estimate the L/F fraction and li
P. 8.1) CO2 at 15MPa and 25C is throttled to 0.1Mpa. Determine the temperature and fraction vapor. (NOTE: there is a typo. Part (c ) makes no sense at 1.5MPa.) Solution: Ebal for a valve, H = 0 (a) assume ideal gas, H = 0 = Cp (T ) T2 = 298K (b) by PREOS.
Chapter 7 Practice Problems (P7.1) G H TS G G ig H H ig S S ig = Eqn. 7.21 RT RT R 3 d H H ig a Z d + Z 1 = T = T + Z 1 5/ 2 RT T 2 RT (1 + b ) 0 0
note:
dx 1 = log e (ax + b) ax + b a
3 1 a = ln (1 + b ) 3/ 2 2T b R SS R
ig
+ Z 1 =
0
3a 1 ln (1 + b ) +
Chapter 7 Practice Problems (P7.1) G H TS G G ig H H ig S S ig = Eqn. 7.21 RT RT R 3 d H H ig a Z d = T + Z 1 = T + Z 1 5/ 2 RT T 2 RT (1 + b ) 0 0 note: 3 = 2T 3 / 2 dx 1 = log e (ax + b) ax + b a
1 a ln (1 + b ) b R
+ Z 1 =
0
3a 2 RT 3 / 2
1 ln (1 + b )
Chapter 3 Practice Problems (P3.1) (a) the number of microstates is 2 N (pg 91, typo in given answer, printings 1-3) (b) 3 particles total 3! pcfw_2 H ,1T = = 3 number microstates of specific arrangement (macrostate) 2!*1! probability = (# microstates of
Chapter 4 Practice Problems (P4.1) COP = coef. of performance = QC WS ,net Using state numbers of Fig 4.9-4.10. P-H plot will look like Fig 4.10 of pg 151. Use P-H chart pg 653 and table pg 654: state 2 is satV at 40C ! H2 = 372 kJ/kg (chart) state 3, out
Chapter 2 Practice Problems (P2.1) Energy Balance: Eqn. 2.27 in out . . . d u2 gz u2 gz u2 gz in = H + & & mU + + + m H + + m out + Q + W EC + W S dt 2 g C g C inlets 2gC gC 2g C gC outlets
& Q & & closed system, no mass flow m in = m out = 0 , & valve s