264463995 me6301-engineering-thermodynamics-formulae-chart
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1. Constant volume (isochoric) process: Work done = change in internal energy. Change in enthalpy and entropy depend only on temperature change. 2. Constant pressure (isobaric) process: Work done and change in internal energy depend on temperature and volume changes. Change in enthalpy and entropy depend only on temperature change. 3. Constant temperature (isothermal) process: Work done depends on pressure change. Change in internal energy, enthalpy and entropy are zero.
![FORMULAE CHART
SL.N
O
PROCESS P V T RELATIONS WORK DONE HEAT TRANSFER
CHANGE IN INTERNAL
ENERGY
CHANGE IN ENTHALPY CHANGE IN ENTROPY
SYBL W Q U H S
UNIT KJ KJ KJ KJ KJ/K
1.
CONSTANT
VOLUME
OR
ISOCHORIC
[V =
CONSTANT]
2
1
2
1
T
T
=
P
P 0 ).(. 12 TTCm V ).(. 12 TTCm V ).(. 12 TTCm p )/ln(.. 12 PPCm V
2.
CONSTANT
PRESSURE
OR
ISOBARIC
[P =
CONSTANT]
2
1
2
1
T
T
=
V
V ).(. 12 TTRm
).(. 12 TTCm p ).(. 12 TTCm V ).(. 12 TTCm p )/ln(.. 12 TTCm p
).( 12 VVP
3.
CONSTANT
TEMPERATUR
E
OR
ISOTHERMAL
[T =
CONSTANT]
1
2
2
1
V
V
=
P
P
)/ln(.. 2111 PPVP
W 0 0
)/ln(.. 12 VVRm
)/ln(... 211 PPTRm
4.
REVERSIBLE
ADIABATIC
OR
ISENTROPIC
[PV
粒
=
CONSTANT]
1
1
2
1
2
1
2
1
)
V
V
()(
T
T
э
=
P
P
1
2211
VPVP
0 ).(. 12 TTCm V
or
(-W)
).(. 12 TTCm p
0
1
)( 21
TTmR
5.
POLYTROPIC
[PV
n
=
CONSTANT]
1
1
2
1
2
1
2
1
)
V
V
()(
T
T
nn
n
=
P
P
1
2211
n
VPVP
W
n
.
1
).(. 12 TTCm V ).(. 12 TTCm p )/ln(..
1
12 VVRm
n
1
)( 21
n
TTmR
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264463995 me6301-engineering-thermodynamics-formulae-chart
- 1. FORMULAE CHART SL.N O PROCESS P V T RELATIONS WORK DONE HEAT TRANSFER CHANGE IN INTERNAL ENERGY CHANGE IN ENTHALPY CHANGE IN ENTROPY SYBL W Q U H S UNIT KJ KJ KJ KJ KJ/K 1. CONSTANT VOLUME OR ISOCHORIC [V = CONSTANT] 2 1 2 1 T T = P P 0 ).(. 12 TTCm V ).(. 12 TTCm V ).(. 12 TTCm p )/ln(.. 12 PPCm V 2. CONSTANT PRESSURE OR ISOBARIC [P = CONSTANT] 2 1 2 1 T T = V V ).(. 12 TTRm ).(. 12 TTCm p ).(. 12 TTCm V ).(. 12 TTCm p )/ln(.. 12 TTCm p ).( 12 VVP 3. CONSTANT TEMPERATUR E OR ISOTHERMAL [T = CONSTANT] 1 2 2 1 V V = P P )/ln(.. 2111 PPVP W 0 0 )/ln(.. 12 VVRm )/ln(... 211 PPTRm 4. REVERSIBLE ADIABATIC OR ISENTROPIC [PV 粒 = CONSTANT] 1 1 2 1 2 1 2 1 ) V V ()( T T э = P P 1 2211 VPVP 0 ).(. 12 TTCm V or (-W) ).(. 12 TTCm p 0 1 )( 21 TTmR 5. POLYTROPIC [PV n = CONSTANT] 1 1 2 1 2 1 2 1 ) V V ()( T T nn n = P P 1 2211 n VPVP W n . 1 ).(. 12 TTCm V ).(. 12 TTCm p )/ln(.. 1 12 VVRm n 1 )( 21 n TTmR Nitro PDF Software 100 Portable Document Lane Wonderland