Answered: 3. 1. N2(g)+3112(g) -->2NH3(g) If AH =…

3. 1. N2(g)+3112(g) -->2NH3(g) If AH = -92.2kJ and AS- -0.1987k/K, what is AG for the reaction at 475°C and at 5"C? Provide the answer in kJ. In each case, is the reaction spontaneous?

Chemistry

9th Edition

ISBN:9781133611097

Author:Steven S. Zumdahl

Publisher:Steven S. Zumdahl

Chapter17: Spontaneity, Entropy, And Free Energy

Section: Chapter Questions

Problem 7RQ: If you calculate a value for G for a reaction using the values of Gf in Appendix 4 and get a...

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1 only

SUMMATIVE TEST (GENERAL CHEMISTRY 2-2N OT)
A. Given the equation, calcite the standard free energy change. Answer what is being asked?
3.
1.
N2(g)+3112(g) --->2NH3(g)
If AH = -92.2kJ and AS= -0.1987kJ/K, what is AG for the reaction at 475°C
and at 5"C? Provide the answer in kJ. In each case, is the reaction
spontaneous?
2. The enthalpy and entropy change of a reaction are -3.9 kJ/mole and +56.6
J/mole K respectively at 250 C. What is the free energy change in kJ/mole?
Is this reaction always spontaneous, never spontaneous or does it depend on
the temperature?

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