Handwritten summary notes with examples of chapter 1 in the Thermodynamics - An Engineering Approach Ninth Edition textbook. Includes explanations, annotations, and answered examples from the textbook.
they will
have the same temperature
If TA =
TC
then TA =
TB
TB = To
First Law conservation of
Energy
-
{ Ein - E E out = BE = E Final -
EInni.ua ,
A T
Sum of work , sum of
one
heat ,
energy
in
energy
( measure of disorders of
second Law
Entropy
-
the universe is
always increasing .
-
Naturally things become less organise
-
Direction for processes
work decrease
putting entropy
- in can
Third Law - As the temperature approaches zero
Kelvin 1 rankin the approaches
,
entropy zero
, Units :
Units need to be and consistent
homogenous
-
throughout a
problem
of Joules
Units
Energy : J N
= =
.
m
work -
Ed = N .
m = J
Potential CK
-
mgh =
g) ( mis) ( m) = N -
on = J
-
N
'
N
dhg ) ( J
m
Kinetic -
42mi = mis ) = .
=
Heat -
J = 9 ,
486 × 10-4 Btu
and control volumes :
Systems
system Quantity of matter or a
region
in
-
space chosen for
study
Enclosed
-
by a
boundary
of systems
Types :
open Mass ✓←
crossing boundary
-
-
Energy v
Closed - Mass ×
V
-
Energy
Isolated - Mass ×
Energy ×
-
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