h h
SOLUTION MANUAL
h
,Telegram:@ChemicalE
1.1 a.h Concentrationhofhah gashmixture.
Ahmixturehofhnoblehgasesh[heliumh(1),hargonh(2),hkryptonh(3),handhxenonh(4)]hishathahtotalhpressurehofh
200hkPahandhahtemperaturehofh400hK.hIfhthehmixturehhashequalhmolehfractionshofheachhofhthehgases,hd
etermine:
a) Thehcompositionhofhthehmixturehinhtermsh ofhmasshfractions.
Solution:
Basis:h 100hkmolehofhthehmixture
b) Thehaveragehmolecularhweighthofhthehmixture.
Solution
c) Thehtotalhmolarhconcentration.
Solution
d) Thehmasshdensity.
Solution
,Telegram:@ChemicalE
1.2 a.h Concentrationhofhah liquidhsolutionhfedhtohah distillationhcolumn.
Ahsolutionhofhcarbonhtetrachlorideh(1)handhcarbonhdisulfideh(2)hcontainingh50%hbyhweightheachhishtohb
ehcontinuouslyhdistilledhaththehratehofh4,000hkg/hhDetermine:
a) Thehconcentrationhofhthehmixturehinhtermshofhmolehfractions.
Solution
Basis:h 100hkghmixture
b) Thehaveragehmolecularhweighthofhthehmixture.
Solution
c) Calculatehthehfeedhratehinhkmol/h.
Solution
,Telegram:@ChemicalE
1.3 a.h Concentrationh ofhliquifiedh naturalh gas.
Ahsamplehofhliquifiedhnaturalhgas,hLNG,hfromhAlaskahhashthehfollowinghmolarhcomposition:h93.5%hCH
4,h4.6%hC2H6,h1.2%hC3H8,handh0.7%hCO2.hCalculate:
a) AveragehmolecularhweighthofhthehLNGhmixture.
Solution
b) WeighthfractionhofhCH4h inhthehmixture.
Solution
Basis:h 100hkmolesh ofhLNG
c) ThehLNGhishheatedhtoh300hKhandh140hkPa,handhvaporizeshcompletely.hEstimatehthehdensityhofhtheh
gashmixturehunderhthesehconditions.
Solution