Chemistry
10th Edition
ISBN: 9781305957404
Author: Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher: Cengage Learning
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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 ↑ 5arrow_forwardUse 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) e This reaction is spontaneous only below A 99. °C. AS is (pick one) e ΔΗ is (pick one) e B The reaction is never spontaneous. AS is (pick one) e This reaction is spontaneous only above ΔΗ is (pick one) 8 141. °C but proceeds at a slower rate below 179. °C. AS is (pick one) 8arrow_forwardUse 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 AS is conclusions AH is AS is AH is AS is X ✓ (pick one) positive negative unknown (pick one) î (pick one) (pick one) C Ś ↑ (pick one) îarrow_forward
- 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) Śarrow_forwardD 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 Sarrow_forwardUse 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 C observations This reaction is slower below 18. °C than above. This reaction is spontaneous only above 97. °C. This reaction is always spontaneous, but proceeds faster at temperatures above 72. °C. AH is AS is conclusions AH is AS is AH is AS is ✓ (pick one) positive negative unknown (pick one) (pick one) (pick one) (pick one)arrow_forward
- 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 Crystallization of a pure compound is spontaneous only below 23. °C. This reaction is spontaneous only above 31. °C but proceeds at a faster rate above 83. °C. The reverse of this reaction is always spontaneous but proceeds faster at temperatures above 108. °C. AH is AS is AH is AS is conclusions ΔΗ is AS is (pick one) (pick one) (pick one) (pick one) (pick one) (pick one) Varrow_forwardUse 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)arrow_forwardUse 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 ?arrow_forward
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