On P-v or T-v diagrams, these triple-phase states form a line called the triple line Table 1: Critical and triple point for water and oxygen Critical Point Triple Point
Previous PDF | Next PDF |
[PDF] Binary phase diagrams
MSE 3050, Phase Diagrams and Kinetics, Leonid Zhigilei A binary phase diagram is a temperature - composition map oil – water – surfactant system
[PDF] Phase Diagrams for Three Component Mixtures in Pharmaceuticals
For one component system such as water, the phase rule is enforced and the phase diagram gives a batch of information like the sublimation temperature, triple
[PDF] Water Phase Diagram
Phase diagrams Phase diagrams show the preferred physical states of matter at different temperatures and pressure Within each phase, the material is uniform
[PDF] Properties of Pure Substances Pure Substance Phases of a Pure
On P-v or T-v diagrams, these triple-phase states form a line called the triple line Table 1: Critical and triple point for water and oxygen Critical Point Triple Point
[PDF] Phase Rule
Phase Diagram For one component system [Water system] For two component system Depending upon the component present in system Components which
[PDF] phase_diagram_for_ferric_chloride-water_systempdf
is formed is that of ferric chloride-water system This salt Water Amount per cent Feci, Table 6 12 1 Description of the Phase Diagram shown in Fig 6 12 2
[PDF] Phase Rule CHAPTER-6 PHASE RULE
15 sept 2014 · A mixture of two immiscible liquids such as water and benzene, will The phase diagram for the water system is shown in Fig 6 1 The phase
[PDF] Sem_4_phase equilibria_3 - Surendranath College
Phase The Diagram for phase diagram Carbon dioxide (CO2) : for co2 is schematically shown 1 The curve OA represents the equilibrium vapour pressure
[PDF] Time Temperature Transformation (TTT) Diagrams - Phase
Institute of Technology, Banaras Hindu University Varanasi-221 005, India TTT diagrams TTT diagram stands for “time-temperature-transformation” diagram It is In molten salt bath technique two salt baths and one water bath are used
[PDF] phase diagram of water triple point
[PDF] phase diagram of water vs co2
[PDF] phase diagram of water vs other substances
[PDF] phase diagram of water worksheet
[PDF] phase of a discrete signal
[PDF] phases of water
[PDF] phatic function of language examples
[PDF] phd economics
[PDF] phd economics europe
[PDF] phd in disaster management in ignou
[PDF] phe budget 2020
[PDF] phelan
[PDF] phemius pronunciation
[PDF] phenol acetic anhydride reaction mechanism
1
PropertiesofPureSubstances
PureSubstance
suchaswater,air,andnitrogen. Apure compositionofallphasesisthesame.PhasesofaPureSubstance
A liquid,andgas. A oscillateabouttheirequilibriumposition.Liquid
relativetoeachother.Gasmoleculesmove
thecontainertheyarein. liquidsorsolidphases.PhaseͲChangeProcessesofPureSubstances
1.Solid
2.Mixedphaseofliquidandsolid
2 liquidiscompletelyvaporized. thesaturationtemperature,T sat iscalledthesaturationpressure,P sat 3 T sat =f(P sat distinguishable thetriple line.CriticalPointTriplePoint
P(atm)T(K/°C)P(atm)T(K/°C)
H 2O218647.30/(374.14)0.006273.17(0.01)
O 2VaporDome
diagram.Fig.2:PͲvdiagramofapuresubstance.
sat.vaporline sat.liquid lineSUPERHEATEDVAPORREGION
COMPRESSED
LIQUID
REGION
SATURATEDLIQUIDͲ
VAPORREGION
vT 2 =const.>T 1 T 1 =constcriticalpointP 4ThePͲTorPhaseChangeDiagram
Fig.3:phasediagramofpuresubstances.
(sublimation). thesethreelinesmeetatthetriplepoint. ifPPropertyTables formoftables,seeTableAͲ4. vapor.Another saturatedliquidvaluesofthesameproperty.
Forexample:
v f =specificvolumeofsaturatedliquid v g =specificvolumeofsaturatedvapor v fg =differencebetweenv g andv f (v fg =v g -v fEnthalpy
Enthalpyofvaporization(orlatentheat)
:representstheamountofenergyneededto1ͲSaturatedLiquidͲVaporMixture
gf mmmmmx vaporliquidtotal totalvapor mm liquidͲvapormixture. 6 vvvxkgmxvvvmmxxvvxvvmvmmvmmmmvmvmvmVVV or, //and1mby dividing 3t mixtureproperties.Similarly,
fgfavefgfave xhhhxuuuOringeneral,itcanbesummarizedasy
ave =y f +x.y fg .Notethat: gavef yyyx dd10 criticalpoint sat. liquid statessat. vapor states sat.vapor sat.liquid Por T v 7Example1:SaturatedliquidͲvapormixture
Aclosed,rigidcontainerofvolume0.5m
3 1 =1 2 =1.5bar.Indicate a)thetemperature,in°C,ateachstate. b)themassofvaporpresentateachstate,inkg. saturatedvapor.Solution:
Assumptions:
1. Waterinthecontainerisaclosedsystem.
2. States1,2,and3areequilibriumstates.
3. Thevolumeofcontainerremainsconstant.
pressureandqualityareknown.Thusstate1 isknown,asmentionedintheproblem.The kgmvvvxvv fgf /8475.0)001043.0694.1(5.0001043.0kPa100bar 1 Pat 5-A Table From 3111111
processwithinthecontainer,sov 2 =v 1 .ForP 2 =0.15MPa,TableAͲ5givesv f2 =0.001053 andv g2 =1.1593m 3 /kg.Since 8 v f23 2 .FromTableAͲ5,forP 2 =1.5 bar,wehave: kgkgmxvvvvx gfgf 22222
2
InterpolatinginTableAͲ5atv
g =0.8475m 3 /kg,wegetP 3 =2.11bar. vP 2 =1.5bar P 1 =1bar 3 12T 92ͲSuperheatedVapor
IfT>>T
critical orP<3ͲCompressed(orSubͲcooled)Liquid saturationtemperature. Tf yy approximation: satfTf PPvhh