Chapter 23 text review questions
This presentation is the property of its rightful owner.
Sponsored Links
1 / 7

Chapter 23 Text Review Questions PowerPoint PPT Presentation


  • 77 Views
  • Uploaded on
  • Presentation posted in: General

Chapter 23 Text Review Questions. Answers. CH 23 TEXT #1-26 KEY. 1.B9. POSITIVE 2.B10. ENTROPY & ENTHALPY 3.A11. TRUE 4.C12 IS NONSPONTANEOUS 5.A13. Δ H 6.C14. TEMPERATURE 7.A15 Keq << 1 8.C16.LESS. Ch Review Questions.

Download Presentation

Chapter 23 Text Review Questions

An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -

Presentation Transcript


Chapter 23 text review questions

Chapter 23 Text Review Questions

Answers


Ch 23 text 1 26 key

CH 23 TEXT #1-26 KEY

  • 1.B9. POSITIVE

  • 2.B10. ENTROPY & ENTHALPY

  • 3.A11. TRUE

  • 4.C12 IS NONSPONTANEOUS

  • 5.A13. ΔH

  • 6.C14. TEMPERATURE

  • 7.A15 Keq << 1

  • 8.C16.LESS


Ch review questions

Ch Review Questions

  • 17. A spontaneous rxn is one that proceeds on its own without outside intervention

  • 18. Quantitative measure of disorder of substances involved in a reaction. Solids changing to liquids and combustion of fuels.


G h t s

ΔG = ΔH - T ΔS

#19.

- ΔH / +ΔSALWAYS be spontaneous!

+ΔH / + ΔSSpontaneous at HIGH Temperatures

+ ΔH / – ΔSALWAYS NONSPONTANEOUS.

-ΔH / -ΔSSpontaneous at LOW Temperatures


Ch review questions1

Ch Review Questions

  • 20. Free energy incorporates both entropy and enthalpy. It determines a reaction’s spontaneity. Spontaneous rxns have negative free energy values

  • 21. ΔG = ΔH - T ΔSAt high temps the T ΔSterm will cause ΔG to be negative. The driving force is only entropy. Entropy increases as temp increases.


Ch review questions2

Ch Review Questions

  • 22. a) + b) - c) +

  • 23.

  • a) + ; depends on values of S,H, and T

  • b) +; spontaneous

  • c) +; spontaneous

  • 24. OMIT


Ch review questions3

Ch Review Questions

  • 25. a) - b) - c) -

  • 26. a) + b) - c) –

  • END CHAPTER REVIEW QUESTIONS


  • Login