Table of Contents
Table of Contents
“Exercises of Thermodynamics”
INTRODUCTION
THERMODYNAMICS
HEAT TRANSMISSION
KINETIC THEORY OF GASES
“Exercises of Thermodynamics”
“Exercises of Thermodynamics”
SIMONE MALACRIDA
In this book, exercises are carried out regarding the following physics topics:
thermodynamics, thermodynamic processes and cycles
diagrams and state functions
heat transfer
kinetic theory of gases
Simone Malacrida (1977)
Engineer and writer, has worked on research, finance, energy policy and industrial plants.
ANALYTICAL INDEX
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INTRODUCTION
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I – THERMODYNAMICS
Exercise 1
Exercise 2
Exercise 3
Exercise 4
Exercise 5
Exercise 6
Exercise 7
Exercise 8
Exercise 9
Exercise 10
Exercise 11
Exercise 12
Exercise 13
Exercise 14
Exercise 15
Exercise 16
Exercise 17
Exercise 18
Exercise 19
Exercise 2 0
Exercise 21
Exercise 22
Exercise 23
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II – HEAT TRANSMISSION
Exercise 1
Exercise 2
Exercise 3
Exercise 4
Exercise 5
Exercise 6
Exercise 7
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III - KINETIC THEORY OF GASES
Exercise 1
Exercise 2
INTRODUCTION
INTRODUCTION
In this workbook some exemplifying problems about thermodynamics, heat transmission and the kinetic theory of gases are carried out.
The way of tackling the resolution of the exercises follows what is generally done at the university level in the courses of Technical Physics.
For this reason, the workbook is aimed only at those who already have an advanced understanding of both university-level mathematical analysis problems and the physical theories necessary to understand the proposed exercises.
I
THERMODYNAMICS
THERMODYNAMICS
Exercise 1
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Given a mass M liters of water at the temperature of T (lower than saturation) contained in a closed system at pressure p, calculate the amount of heat Q that must be supplied to the system to make a fraction of the initial water vaporize at constant pressure .
What is the change in entropy between the final and initial states?
Draw the pV and TS diagram of the transformation.
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Applying the first law of thermodynamics:
Where latent heat and temperature are calculated at pressure pex is the fraction of the water to be vaporised.
The entropy change is given by:
The pV diagram is:
While that TS
Exercise 2
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In a room of size a, well the air is at a certain temperature.
Outside air has another temperature and a certain humidity.
If the title x of the external air coincides with the title of the internal air, calculate how much mass of water must be introduced into the room to reach the same humidity as the external one.
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The title of the external air is:
The hygrometric degree of the air contained in the room is:
The partial pressure of the air in the room is:
Applying the ideal gas equation of state, the mass of dry air in the room is:
Impressum
Verlag: BookRix GmbH & Co. KG
Tag der Veröffentlichung: 24.04.2023
ISBN: 978-3-7554-4026-0
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