540.203 Engineering Thermodynamics Spring 2012
Homework 2 Due 2/24/2012
1. A compressor is a gas pumping device that takes in a gas at low pressure and discharges it at a
higher pressure. Since this process occurs quickly compared with heat transfer, it i
Advanced Thermodynamics
Note 3
Heat Effects
Lecturer:
Heat
The manufacture of ethylene glycol:
The catalytic oxidation reaction is most effective when
carried out at temperatures near 250C.
The reactants, ethylene and air are heated to this
temperatur
540.203 Engineering Thermodynamics Spring 2012
Homework #6 Due 4/13/2012
(Use MATLAB where necessary)
1. 15 molecules are distributed as 9:4:2 between equal-sized boxes A:B:C, respectively. The
partitions between the boxes are removed, and the molecules d
540.203 Engineering Thermodynamics Spring 2012
Homework #5 Due 4/6/2012
(Use MATLAB where necessary)
1. Calculate the molar volume of ethane at a pressure of 300 bars and temp of 100oC using:
a.
Ideal gas law
b.
Van der Waals equation of state
c.
Redlich-
540.203 Engineering Thermodynamics Spring 2012
Homework #3 Due 3/2/2012
1. Comment on the feasibility of cooling your kitchen in the summer by opening the door to the
electrically powered refrigerator (in terms of the 1st and 2nd law of thermodynamics)?
2
540.203 Engineering Thermodynamics Spring 2012
Homework 1 Due 2/17/2012
1. Engineers often simplify problems by considering the relative magnitude of each term in
an equation. To illustrate this consider a block mass, m, subject to three processes.
a) The
Engineering Thermodynamics: Useful Equations
Closed system (neglect kinetic and potential energy):
First Law:
t
t
t
dU
= Q + W and U t =Q + W
Open system: =out-in
d (U t )c.v.
1
+ ( H + u 2 + gz ) m
= Q +W
S
dt
2
f .s.
1
Q
[( H + u 2 + gz ) m ]=+Ws
2
E