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CH-107

Lecture

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CHEMICAL
ENGINEERING
THERMODYNAMICS-I

Dr
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M Smith, 7th Edition
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• “Thermodynamics, an Engineering
Approch” by Yunus A Cengel
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CHEMICAL ENGINEERING THERMODYNAMICS-I

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Faculty of Chemical Engineering, NEDUET

Lecture Outlines
Fundamentals of Thermodynamics
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CHEMICAL ENGINEERING THERMODYNAMICS-I

Faculty of Chemical Engineering, NEDUET

Fundamentals

What is Thermodynamics?
 The science of energy, that
concerned with the ways in
which energy is stored within a
body
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Thermodynamics applies to a wide variety of
topics in science and engineering,
especially physical chemistry, chemical
engineering and mechanical engineering, but also
in fields as complex as meteorology
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 Energy transformations – mostly
involve heat and work movements
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CHEMICAL ENGINEERING THERMODYNAMICS-I

Faculty of Chemical Engineering, NEDUET

Fundamentals

Brief History
• 1st and 2nd law of thermodynamics emerged simultaneously in the
1850s
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• It started at the time of industrial revolution at the beginning of
generating power by burning fossil fuels
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• Historically, thermodynamics developed out of a desire to increase
the efficiency of early steam engines
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 Only a few variables are used to describe the state of matter
such as temperature, pressure and volume
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 Studies the average behavior of large groups of Molecules

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CHEMICAL ENGINEERING THERMODYNAMICS-I

Faculty of Chemical Engineering, NEDUET

Fundamentals

Types Of Thermodynamics
 Statistical thermodynamics formulate the microscopic state
 Defines the properties of a system based on the behavior of
molecules/atoms
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 A large no of variables are needed to describe the state of
matter
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 Power Production
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 In an equilibrium state there are no unbalanced potentials, or driving
forces, between macroscopically distinct parts of the system

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