Assignment_Gibbs and Chemical Constants
Content
PROBLEM SET_GIBBS_CHEMICAL CONSTANTS DUE on SEPT 16, 2011, FRIDAY
1. Consider the equili riu!" CO#$% & H'O#$%
⇔ CO'#$% & H'#$%
At 1((( ) the equili riu! *o!+osition o, the re-*tion !i.ture is" Su st-n*e CO'#$% H'#$% CO#$% H'O#$% Mole / '0.1 '0.1 ''.1 ''.1 #-% C-l*ul-te )+ -nd 2G r.n3 -t 1((( ). # % Gi4en the -ns5er to +-rt #-%6 use the t- ul-ted d-t- ,or 2H,3 o, the re-*tion s+e*ies to *-l*ul-te 2Gr.n -t '17 ). Assu!e 2Hr.n3 is inde+endent o, te!+er-ture in this r-n$e. '. Consider the $-s +h-se re-*tion o, NO' sho5n elo5. At T 8 0(( )6 the equili riu! *onst-nt )+ 8 (.901. At - tot-l +ressure o, ' -t!6 the +-rti-l +ressure o, o.:$en in the re-*tion is (.907 -t! -t equili riu!. ;eter!ine the !ol-r st-nd-rd st-te ,ree ener$: o, re-*tion #2Gr.n% -nd the equili riu! *o!+osition o, the $-s !i.ture #,in-l +-rti-l +ressure o, e-*h *o!+onent% ,or these *onditions. NO'#$% ⇔ NO#$% & < O'#$% 9. C-#HCO9%'#s% de*o!+oses -t ele4-ted te!+er-tures -**ordin$ to the stoi*hio!etri* equ-tion" C-#HCO9%'#s%
⇔
C-CO9#s% & H'O#$% & CO'#$%
#-% I, +ure C-#HCO9%'#s% is +ut into - se-led 4essel6 the -ir is +u!+ed out6 -nd the 4essel -nd its *ontents -re he-ted6 the tot-l +ressure is (.11= -r. ;eter!ine )P under these *onditions. # % I, the 4essel initi-ll: -lso *ont-ins (.''= -t! H'O#$%6 5h-t is the +-rti-l +ressure o, CO'#$% -t equili riu!>
1. Consider the equili riu!" CO#$% & H'O#$%
⇔ CO'#$% & H'#$%
At 1((( ) the equili riu! *o!+osition o, the re-*tion !i.ture is" Su st-n*e CO'#$% H'#$% CO#$% H'O#$% Mole / '0.1 '0.1 ''.1 ''.1 #-% C-l*ul-te )+ -nd 2G r.n3 -t 1((( ). # % Gi4en the -ns5er to +-rt #-%6 use the t- ul-ted d-t- ,or 2H,3 o, the re-*tion s+e*ies to *-l*ul-te 2Gr.n -t '17 ). Assu!e 2Hr.n3 is inde+endent o, te!+er-ture in this r-n$e. '. Consider the $-s +h-se re-*tion o, NO' sho5n elo5. At T 8 0(( )6 the equili riu! *onst-nt )+ 8 (.901. At - tot-l +ressure o, ' -t!6 the +-rti-l +ressure o, o.:$en in the re-*tion is (.907 -t! -t equili riu!. ;eter!ine the !ol-r st-nd-rd st-te ,ree ener$: o, re-*tion #2Gr.n% -nd the equili riu! *o!+osition o, the $-s !i.ture #,in-l +-rti-l +ressure o, e-*h *o!+onent% ,or these *onditions. NO'#$% ⇔ NO#$% & < O'#$% 9. C-#HCO9%'#s% de*o!+oses -t ele4-ted te!+er-tures -**ordin$ to the stoi*hio!etri* equ-tion" C-#HCO9%'#s%
⇔
C-CO9#s% & H'O#$% & CO'#$%
#-% I, +ure C-#HCO9%'#s% is +ut into - se-led 4essel6 the -ir is +u!+ed out6 -nd the 4essel -nd its *ontents -re he-ted6 the tot-l +ressure is (.11= -r. ;eter!ine )P under these *onditions. # % I, the 4essel initi-ll: -lso *ont-ins (.''= -t! H'O#$%6 5h-t is the +-rti-l +ressure o, CO'#$% -t equili riu!>
