**Determining Reaction Enthalpy and Entropy Signs**To analyze the chemical reactions based on the observations provided, use the table below to determine whether the reaction enthalpy (\(\Delta H\)) and reaction entropy (\(\Delta S\)) are positive, negative, or unknown. _Note: If insufficient information is provided to determine a sign, select "unknown."_---**Reactions and Observations:**1. **Reaction A** - **Observation:** This reaction is spontaneous only below 85°C. - **Conclusions:** - \(\Delta H\) is (pick one: positive, negative, unknown) - \(\Delta S\) is (pick one: positive, negative, unknown)2. **Reaction B** - **Observation:** This reaction is spontaneous except below -1°C, but proceeds at a slower rate below 93°C. - **Conclusions:** - \(\Delta H\) is (pick one: positive, negative, unknown) - \(\Delta S\) is (pick one: positive, negative, unknown)3. **Reaction C** - **Observation:** The reverse of this reaction is always spontaneous but proceeds slower at temperatures below -1°C. - **Conclusions:** - \(\Delta H\) is (pick one: positive, negative, unknown) - \(\Delta S\) is (pick one: positive, negative, unknown)Use these observations along with your knowledge of thermodynamics to deduce the signs of \(\Delta H\) and \(\Delta S\) for each reaction.

ΔG = ΔH - TΔS If ΔG = -ve , reaction is spontaneous ΔG = +ve , reaction is non spontaneous…

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 с observations This reaction is spontaneous only below 85. °C. This reaction is spontaneous except below. -1. °C but proceeds at a slower rate below 93. °C. The reverse of this reaction is always spontaneous but proceeds slower at temperatures below - 1. °C. AH is AS is conclusions AH is AS is AH is ΔS is X ✓(pick one) positive negative unknown (pick one) (pick one) (pick one) (pick one) 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 A B с observations This reaction is spontaneous only below 85. °C. This reaction is spontaneous except below. -1. °C but proceeds at a slower rate below 93. °C. The reverse of this reaction is always spontaneous but proceeds slower at temperatures below - 1. °C. AH is AS is conclusions AH is AS is AH is ΔS is X ✓(pick one) positive negative unknown (pick one) (pick one) (pick one) (pick one) S

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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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 (pick one) The reverse of this reaction is always spontaneous but proceeds faster at A temperatures above 25. °C. AS is (pick one) v This reaction is spontaneous except below AH is (pick one) 63. °C but proceeds at a faster rate above 117. °C. AS is (pick one) v AH iS This reaction is always spontaneous, but proceeds faster at temperatures above (pick one) v C 115. °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 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) ×
A cvg.cengagenow.com Flipgrid | 50ffc. GRLContent Netflix Favorites My Home 3-Day General.. Netflix Content [Review Topics] [References] 2req Use the References to access important values if needed for this question. 2req The free energy change for the following reaction at 25 °C, when [H*] = 7.21×10³ M and [Hg²*]=1.17 M, is 178 kJ: 2req 2H*(7.21×10-3 M) + Hg(1)→ H,(g) + Hg²*(1.17 M) AG= 178 kJ What is the cell potential for the reaction as written under these conditions? s 2req Answer: V ts 2req Would this reaction be spontaneous in the forward or the reverse direction? ots OM) pts 2reg Submit Answer Retry Entire Group 9 more group attempts remaining pts M) pts
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 ?
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 entre AS. Note: if you have not been given enough information to decide a sign, select the "unknown" option. reaction observations conclusions This reaction is always spontaneous, but proceeds faster at temperatures below AH is (pick one) 132. °C. AS is (pick one) v AH is (pick one) ♥ This reaction is spontaneous except below 3. °C. B AS is (pick one) ♥ ΔΗ is (pick one) ♥ This reaction is spontaneous only below 44. °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 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 This reaction is spontaneous only above ΔΗ is (pick one) A 144. °C but proceeds at a faster rate above 181. °C. AS is |(pick one) ΔΗ is |(pick one) В This reaction is exothermic. AS is |(pick one) ♥ ΔΗ is |(pick one) This reaction is always spontaneous, but proceeds slower at temperatures below -37. °C. C AS is |(pick one) ?