Biochemistry
Biochemistry
9th Edition
ISBN: 9781319114671
Author: Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.
Publisher: W. H. Freeman
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Question

The decomposition of crystalline N2O5                                                              N2O5(s) → 2NO2(g) + 1/2O2(g)                                                                            is an example of a reaction that is thermodynamically favored, even though it absorbs heat. At 25 °C we have the following values for the standard state enthalpy and free energy changes of the reaction:                                          ∆H° = +109.6 kJ/mol                                                                                        ∆G° = -30.5 kJ/mol                                                                                            (a) Calculate ∆S ° at 25 °C.                                                                                (b) Why is the entropy change so favorable for this reaction?

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