19.65 A particular constant-pressure reaction is barely sponta- neous at 320 K. The enthalpy change for the reaction is +15.2 kJ. Estimate AS for the reaction.
19.65 A particular constant-pressure reaction is barely sponta- neous at 320 K. The enthalpy change for the reaction is +15.2 kJ. Estimate AS for the reaction.
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Please Help me with question 19.65
Transcribed Image Text:Unditions at 298 K,
at what isperature (if any) would the reaction become
19.73 Acetyle
spontane
balance
(a) 2 P 3 02(8)
to CO
2 PbO(s) + 2 SO2(8)
in bur
844 kJ; AS° = -165J/K
if bot!
(b) 2 POCi(8)
(c) W
2 PCI3(8) + O2(8)
AH = 572 kJ; AS° = 179J/K
19.65A particular constant-pressure reaction is barely sponta-
neous at 320 K. The enthalpy change for the reaction is
+15.2 kJ. Estimate AS for the reaction.
can b
reacti
19.74 The f
mari
in b
reac
19.66 A certain constant-pressure reaction is barely nonspon-
taneous at 45 °C. The entropy change for the reaction is
72 J/K. Estimate AH.
form
tha
this
30.0 kJ and AS = 90.0 J/K.
Assume that AH and AS do not vary with temperature.
19.67 For a particular reaction, AH =
%3D
Free Ener
(a) At what temperature will the reaction have AG =
(b) If T is increased from that in part (a), will the reaction
0?
19.75 In
fo
be spontaneous or nonspontaneous?
are called decarbonylation reactions. The decarbonylation of
acetic acid proceeds according to:
19.68 Reactions in which a substance decomposes by losing CO
CH;OH(8) + CO(8)
CH3COOH(1)
19.76
ulate the minimum
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