hapter 15: The Laws of Thermodynamics

thoughtgreenpepperΜηχανική

27 Οκτ 2013 (πριν από 3 χρόνια και 5 μήνες)

46 εμφανίσεις

C
hapter 15: The Laws of Thermodynamics


Outline



15
-
1


The First Law of Thermodynamics

15
-
2


Thermodynamic Processes and the First Law

*15
-
3


Human Metabolism and the First Law

15
-
4


The Second Law of Thermodynamics

Introduction

15
-
5


Heat Engines

15
-
6


Refrigerators, Air Conditioners, and Heat Pumps

15
-
7


Entropy and the Second Law of Thermodynamics

15
-
8


Order to Disorder

15
-
9


Unavailability of Energy; Heat Death

*15
-
11

Statistical Interpretation of Entropy and the Second Law

*15
-
12

Thermal Pollution

and Global Warming


*Brief overview only


Summary


Chapter 15 presents the two great laws of thermodynamics. The first law applies
conservation of energy to thermodynamic systems. The second law defines the concept of
entropy and the limits on the ability

to use the energy of the system to do useful work.
The chapter concludes with a discussion of practical devices and optional sections on the
application of thermodynamics to current topics.


Major Concepts


By the end of the chapter,
you

should understand each of the following and be able to
demonstrate their understanding in problem applications as well as in conceptual situations.



The first law of thermodynamics



Definitions of
Q
,
W

and
ΔU



Sign conventions



Specific heat at constant pres
sure



Specific heat at constant volume



The second law of thermodynamics



Carnot's theorem



Heat engines



Refrigerators and heat pumps



Entropy


Formulas


Δ
U = Q


W


W = P
Δ
V


Q
H
= W + Q
L