Interpretation:
To find the missing data for different sources using the available data.
Concept introduction:
The only concept that is to be used here is that though the values are from different sources, the difference between the values two state points for any source remains constant.
To convert the unit of
Explanation of Solution
The difference in specific internal energy for state A and B from source 2 is calculated.
Here, specific internal energy of states A and B is
Substitute
The value of specific internal energy for state A in source 1 is
Similarly calculate
Here, specific internal energy at state C is
Substitute
Using
The value of specific internal energy for state C in source 2 is
From source 2, calculate
Here, specific internal energy at state D is
Substitute
Using
Substitute
The value of specific internal energy for state D in source 1 is
We know that
From source 3, calculate
Here, specific internal energy at state D is
We get,
Substitute
The value of specific internal energy for state E in source 2 is
The value of specific internal energy for state F in source 2 is
The value of specific internal energy for state G in source 2 is
Similarly from source 3, calculate
Here, specific internal energy at state D is
We get,
Substitute
The value of specific internal energy for state E in source 1 is
The value of specific internal energy for state F in source 1 is
The value of specific internal energy for state G in source 1 is
From source 1, calculate
Here, specific internal energy at state D is
From source 3,
The value of specific internal energy for state C in source 3 is
From source 1, calculate
Here, specific internal energy at state B is
From source 3,
The value of specific internal energy for state B in source 3 is
From source 1, calculate
Here, specific internal energy at state A is
From source 3,
The value of specific internal energy for state A in source 3 is
Conclusion:
The correct values of
State | Phase | |||||
A | Solid | 17 | 1 | -79.2 | 0 | -307.8 |
B | Liquid | 17 | 1 | -18.0 | 20,470 | -246.6 |
C | Liquid | 25 | 1 | 0 | 26,492 | -228.6 |
D | Liquid | 82 | 1 | 228.6 | 102,970 | 0 |
E | Vapor | 82 | 1 | 295.6 | 125,390 | 67 |
F | Vapor | 100 | 1.33 | 364.6 | 148,470 | 136 |
G | Liquid | 100 | 1.33 | 265.6 | 115,350 | 37 |
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Chapter 1 Solutions
Fundamentals of Chemical Engineering Thermodynamics, SI Edition
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