The reaction A( g ) ⇌ B( g ) has an equilibrium constant of 5.8 and under certain conditions has = 336. What can you conclude about the sign of Δ G rxn ° and Δ G rxn for this reaction under these conditions?
The reaction A( g ) ⇌ B( g ) has an equilibrium constant of 5.8 and under certain conditions has = 336. What can you conclude about the sign of Δ G rxn ° and Δ G rxn for this reaction under these conditions?
Solution Summary: The author explains that the G rxn reaction for the system will be positive, since R, T and l n K are all positive values.
The reaction
A(
g
)
⇌
B(
g
)
has an equilibrium constant of 5.8 and under certain conditions has = 336. What can you conclude about the sign of
Δ
G
rxn
°
and
Δ
G
rxn
for this reaction under these conditions?
(c) The following data have been obtained for the hydrolysis of sucrose, C12H22O11, to
glucose, C6H12O6, and fructose C6H12O6, in acidic solution:
C12H22O11 + H2O → C6H12O6 + C6H12O6
[sucrose]/mol dm³
t/min
0
0.316
14
0.300
39
0.274
60
0.256
80
0.238
110
0.211
(i) Graphically prove the order of the reaction and determine the rate constant of the
reaction.
(ii) Determine the half-life, t½ for the hydrolysis of sucrose.
(III) adsorbent
(b) Adsorption of the hexacyanoferrate (III) ion, [Fe(CN)6] ³, on y-Al2O3 from aqueous
solution was examined. The adsorption was modelled using a modified Langmuir
isotherm, yielding the following values of Kat pH = 6.5:
(ii)
T/K
10-10 K
280
2.505
295
1.819
310
1.364
325
1.050
Determine the enthalpy of adsorption, AadsHⓇ.
If the reported value of entropy of adsorption, Aads Se = 146 J K-1 mol-1 under the above
conditions, determine Aads Gº.
with full details solution please
Chapter 19 Solutions
Chemistry: Structure and Properties Custom Edition for Rutgers University General Chemistry
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