Summary Sheets
L
ENGR 375
Chapter Of Intro to
Thermodynamics
Systems are a combination of matter I devices under study
·
closed
systems : mass cannot cross boundaries
systems boundaries
·
open : mass can cross
isolated and energy cannot boundaries
systems mass cross
·
:
boundary
Eye
~
surrounding
intensive properties are independent of the mass of the system .
extensive properties a re dependent on the mass of the system .
within matter exist at different values of properties, referred to
a
phase ,
can
states . the matter got to the
as States do not vary depending on how
valuee.
Work and heat transfer are both path-dependent.
Common Processes :
-
·
isobaris - > constant pressure
isochoric constant volume
·
-
a
iso thermala constant temperature
polytropic a pr = constant
·
adiabatic - no heat transfer
isentropic -
adiabatic and reversible (no loss
if starts and ends at the state after many processes
a
system same ,
it
, is called a
cycle.
the zeroth that if A
law of thermodynamics states is in thermal equilibrium
with B and B is thermal thermal
,
in
equilibrium with C
,
then A is in
equilibrium with C .
substance has and invariable chemical
a
pure a
homogeneous composition .
it than but the chemical
may exist in more one
phase , composition is
the same in all phases .
a mixture of such as air can sometimes be considered pure
gasses , ,
a
substance as long as none of its components change phases
A
diagram
critical point
·
at a
givenT:
I
PC Psat -
liquid
ration P =
P sat -
2-phase Psat = f(T)
PLPsat-a Vapour
a
Vapor
~
triple
at a
given P :
&
T) Tsat-
vapour
T =
Tsat-two-phase Tsat = f(P)(
T LT sat-a liquid
Immand
P&
Diagrams
Te
Mncritical
critical point Do point
Upon it
①
vapour
liquid
i "In ↳ saturated
Of Vg
& vapour
Of i
L
ENGR 375
Chapter Of Intro to
Thermodynamics
Systems are a combination of matter I devices under study
·
closed
systems : mass cannot cross boundaries
systems boundaries
·
open : mass can cross
isolated and energy cannot boundaries
systems mass cross
·
:
boundary
Eye
~
surrounding
intensive properties are independent of the mass of the system .
extensive properties a re dependent on the mass of the system .
within matter exist at different values of properties, referred to
a
phase ,
can
states . the matter got to the
as States do not vary depending on how
valuee.
Work and heat transfer are both path-dependent.
Common Processes :
-
·
isobaris - > constant pressure
isochoric constant volume
·
-
a
iso thermala constant temperature
polytropic a pr = constant
·
adiabatic - no heat transfer
isentropic -
adiabatic and reversible (no loss
if starts and ends at the state after many processes
a
system same ,
it
, is called a
cycle.
the zeroth that if A
law of thermodynamics states is in thermal equilibrium
with B and B is thermal thermal
,
in
equilibrium with C
,
then A is in
equilibrium with C .
substance has and invariable chemical
a
pure a
homogeneous composition .
it than but the chemical
may exist in more one
phase , composition is
the same in all phases .
a mixture of such as air can sometimes be considered pure
gasses , ,
a
substance as long as none of its components change phases
A
diagram
critical point
·
at a
givenT:
I
PC Psat -
liquid
ration P =
P sat -
2-phase Psat = f(T)
PLPsat-a Vapour
a
Vapor
~
triple
at a
given P :
&
T) Tsat-
vapour
T =
Tsat-two-phase Tsat = f(P)(
T LT sat-a liquid
Immand
P&
Diagrams
Te
Mncritical
critical point Do point
Upon it
①
vapour
liquid
i "In ↳ saturated
Of Vg
& vapour
Of i
