Use the observations about each chemical reaction in the table below to decide the sign (positive or negative) of the reaction enthalpy AH and reaction entropy AS. Note: if you have not been given enough information to decide a sign, select the "unknown" option. reaction A B C observations This reaction is always spontaneous, but proceeds faster at temperatures below 140. °C. The reaction is never spontaneous. This reaction is spontaneous only above 129. °C but proceeds at a slower rate below 192. °C. AH is ✓ (pick one) positive negative unknown (pick one) conclusions AS is AH is AS is AH is AS is x (pick one) (pick one) → (pick one) C Ś

Use the observations about each chemical reaction in the table below to decide the sign (positive or negative) of the reaction enthalpy AH and reaction entropy AS. Note: if you have not been given enough information to decide a sign, select the "unknown" option. reaction A B C observations This reaction is always spontaneous, but proceeds faster at temperatures below 140. °C. The reaction is never spontaneous. This reaction is spontaneous only above 129. °C but proceeds at a slower rate below 192. °C. AH is ✓ (pick one) positive negative unknown (pick one) conclusions AS is AH is AS is AH is AS is x (pick one) (pick one) → (pick one) C Ś

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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Try Again Your answer is incorrect. Use the observations about each chemical reaction in the table below to decide the sign (positive or negative) of the reaction enthalpy AH and reaction entropy AS. Note: if you have not been given enough information to decide a sign, select the "unknown" option. reaction A reaction B: Your answer is incorrect. B с observations This reaction is always spontaneous, but proceeds faster at temperatures above 9. °C. This reaction is spontaneous except below -20. °℃ but proceeds at a slower rate below 73. °C. Crystallization of a pure compound is spontaneous only below - 16. °C. AH is AS is conclusions AH is AS is AH is AS is X negative ↑ positive ↑ positive î negative ↑ negative ↑ negative ↑ 5
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Use the observations about each chemical reaction in the table below to decide the sign (positive or negative) of the reaction enthalpy AH and reaction entropy A.S. Note: if you have not been given enough information to decide a sign, select the "unknown" option. reaction A B C observations The reverse of this reaction is always spontaneous but proceeds slower at temperatures below -26. °C. This reaction is spontaneous except above -42. °℃. This reaction is endothermic. AH is AS is conclusions AH is AS is AH is AS is X (pick one) (pick one) (pick one) (pick one) (pick one) (pick one)
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Use the observations about each chemical reaction in the table below to decide the sign (positive or negative) of the reaction enthalpy AH and reaction entropy A.S. Note: if you have not been given enough information to decide a sign, select the "unknown" option. reaction A B с observations This reaction is spontaneous only above 30. °C but proceeds at a slower rate below 199. °C. This reaction is spontaneous only below 19. °C. This reaction is exothermic and proceeds slower at temperatures below 60. °C. conclusions AH is AS is AH is AS is AH is AS is X (pick one) (pick one) (pick one) ✓ (pick one) (pick one) (pick one) Ś
Use the observations about each chemical reaction in the table below to decide the sign (positive or negative) of the reaction enthalpy AH and reaction entropy AS. Note: if you have not been given enough information to decide a sign, select the "unknown" option. reaction A B C observations This reaction is slower below - 1. °C than above. This reaction is spontaneous only below -3. °C. The reaction is never spontaneous. AH is AS is conclusions AH is As is AH is AS is X ✓ (pick one) î positive negative unknown (pick one) (pick one) (pick one) (pick one) Ś ↑ î
D Try Again Your answer is incorrect. Use the observations about each chemical reaction in the table below to decide the sign (positive or negative) of the reaction enthalpy AH and reaction entropy AS. Note: if you have not been given enough information to decide a sign, select the "unknown" option. reaction A • reaction A: Your answer is incorrect. • reaction C: Your answer is incorrect. B с observations The reverse of this reaction is always spontaneous. This reaction is exothermic and proceeds slower at temperatures below -26. °C. This reaction is always spontaneous, but proceeds faster at temperatures above 139. °C. AH is AS is conclusions AH is As is AH is AS is X unknown negative ŷ negative ↑ unknown î unknown ↑ positive î S
Use the observations about each chemical reaction in the table below to decide the sign (positive or negative) of the reaction enthalpy AH and reaction entropy AS. Note: if you have not been given enough information to decide a sign, select the "unknown" option. reaction observations conclusions ΔΗ is (pick one) A The reverse of this reaction is always spontaneous. As is (pick one) ΔΗ is (pick one) B This reaction is spontaneous only below 20. °C. As is (pick one) с This reaction is spontaneous except below 85. °C but proceeds at a slower rate below ΔΗ is (pick one) 129. °C. As is (pick one) ×
Use the observations about each chemical reaction in the table below to decide the sign (positive or negative) of the reaction enthalpy ▴ and reaction entropy as. Note: if you have not been given enough information to decide a sign, select the "unknown" option. reaction A B C observations The reverse of this reaction is always spontaneous. This reaction is spontaneous except above 64. °C. This reaction is always spontaneous, but proceeds faster at temperatures below 77. °C. AH is AS is conclusions AH is AS is AH is AS is x (pick one) (pick one) (pick one) (pick one) (pick one) (pick one)
Use the observations about each chemical reaction in the table below to decide the sign (positive or negative) of the reaction enthalpy AH and reaction entropy AS. Note: if you have not been given enough information to decide a sign, select the "unknown" option. reaction observations conclusions AH is A This reaction is always spontaneous, but proceeds slower at temperatures below 45. °C. AS is ΔΗ is This reaction is spontaneous only above 150. °C but proceeds at a faster rate above 180. °C. AS is ΔΗ is This reaction is exothermic and proceeds slower at temperatures below 67. °C. AS is X C (pick one) (pick one) (pick one) (pick one) ✓ (pick one) (pick one) Ś ?