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Please explain and show all work! Hydrochloric acid reacts with oxygen (O2) tofo

ID: 794439 • Letter: P

Question

Please explain and show all work!


Hydrochloric acid reacts with oxygen (O2) toform chlorine (Cl2) and water. Oxygen is fed in 25% excess, and it is fed as a stream of air rather than pure oxygen. The fractional conversion of HCl is 0.80. Calculate the composition (mole fractions) of the product stream using the method of atomic species balances. Calculate the composition (mole fractions) of the product stream using the method of molecular species balances. In this case, the process was operated with air as the oxygen source. Alternatively, pure O2 can be separated from air and fed to the reactor. Sometimes one method is more cost effective and sometimes the other is. Speculate on the costs associated with each approach.

Explanation / Answer

(4)HCl+(1)O2--->(2)H2O+(2)Cl2

a)conversion. i am assuming excess oxygen.;
41.56gHCl (1molHCl/36.5gHCl) (1molCl2/2molHCl) =.569molCl2

pv=nrt
v=nrt/p
v=((.569)(.082)(273)/1
12.7L

b)at STP,
5LO2=.223 mol O2
10LHCl=.447 mol HCl
need 4 times as much HCl as O2, so in this case HCl is limiting, as you need more of it to get 4 times the O2 amount.

conversion

.447molHCl (1molH2O/2molHCl) (18gH2O/1molH2O) = 4.023g H2O

make it a good day