For a particular reaction, AH= 30.0 kJ and AS= Assume that AH and AS do not vary with temperature. (a) At what temperature will the reaction have AG 0? (b) If T is increased from that in part (a), will the reaction be spontaneous or nonspontaneous? 90.0J/K.

For a particular reaction, AH= 30.0 kJ and AS= Assume that AH and AS do not vary with temperature. (a) At what temperature will the reaction have AG 0? (b) If T is increased from that in part (a), will the reaction be spontaneous or nonspontaneous? 90.0J/K.

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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Question

Please help me with question 19.67.

AH
844 k); AS -1651/K
If both re
(c) What
(b) 2FC ()
2 PCI (8) + O(8)
can be ac
372 k); AS 1791/K
19.65A par constant-pressure reaction is barely sponta-
neous 0 K. The enthalpy change for the reaction is
+15.2 stimate AS for the reaction.
reaction
19.74 The fuel
marily o
in burn
at
reactan
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.
formed
that ca
this sys
19.67 For a particular reaction, AH=
30.0 kl and AS =
90.0 J/K.
Assume that AH and AS do not vary with temperature.
Free Energy
(a) At what temperature will the reaction have AG 0?
(b) If T is increased from that in part (a), will the reaction
be spontaneous or nonspontaneous?
19.75 Indic
for ea
O, is
19.68 Reactions in which a substance decomposes by losing CO
are called decarbonylation reactions. The decarbonylation of
acetic acid proceeds according to:
(a)
(b)
(c)
CH,COOH(I)
CH,OH(8) + C0(g)
19.76 Inc
ch
By using data from Appendix C, calculate the minimum
temperature at which this process will be spontaneous un-
der standard conditions. Assume that AH" and AS do not
y with temperature.
of
vary v
19.69) Consider the following reaction between oxides of
nitrogen:
19.77
ANO)

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