Chap19-Part4

Chap19-Part4 - Final Exam: May 6th Friday 2011 Syllabus:...

Info iconThis preview shows pages 1–12. Sign up to view the full content.

View Full Document Right Arrow Icon
Final Exam: May 6 th Friday 2011 Syllabus: All Chapters (10-19) No Questions from CH-12, 18 and 20 1 Review Sessions: April 27 th 2011 (Wednesday), 7pm, Chapman 211 April 30 th 2011(Saturday), 10am, Chapman 211 May 2 nd 2011(Monday), 7pm, Chapman 211 No Corrections to the midterm exams after Friday 29 th April 2011
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Free Energy and Temperature 2
Background image of page 2
Free Energy and Equilibrium Under any conditions, standard or nonstandard, the free energy change can be found this way: Δ G = Δ G ° + RT ln Q (Under standard conditions, all concentrations are 1 M , so Q = 1 and ln Q = 0; the last term drops out.) 3
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Free Energy and Equilibrium • At equilibrium, Q = K , and Δ G = 0. • The equation becomes 0 = Δ G ° + RT ln K • Rearranging, this becomes Δ G ° = - RT ln K or, K = e - Δ G ° RT 4
Background image of page 4
5
Background image of page 5

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
What are the signs of Δ S, Δ H and Δ G for the following spontaneous process? solid gas
Background image of page 6
What are the signs of Δ S, Δ H and Δ G for the following spontaneous process? disorder is increased Δ S > 0 intermolecular interactions are disrupted Δ H > 0 the process is spontaneous Δ G < 0 solid gas
Background image of page 7

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Predict the sign of Δ S accompanying this reaction.
Background image of page 8
Predict the sign of Δ S accompanying this reaction. A 4 B 2 2 A 2 B The reaction generates more molecules. The reaction is probably associated with an increase in entropy.
Background image of page 9

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
The reaction is A 2 + B 2 2 AB. A (red) and B (blue). In (1), the system is at equilibrium. (a) Will the system spontaneously proceed from (2) to (1)?
Background image of page 10
The reaction is A 2 + B 2 2 AB. A (red) and B (blue). In (1), the system is at equilibrium. (a) Will the system spontaneously proceed from (2) to (1)? Qualitative answer:
Background image of page 11

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 12
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 09/13/2011 for the course CHEM 102 taught by Professor Todd during the Spring '08 term at UNC.

Page1 / 27

Chap19-Part4 - Final Exam: May 6th Friday 2011 Syllabus:...

This preview shows document pages 1 - 12. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online