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 always spontaneous, but proceeds slower at temperatures below 0. °C. The reverse of this reaction is always spontaneous but proceeds faster at temperatures above 12. °C. Crystallization of a pure compound is spontaneous only below 48. °C. conclusions AH is ✔ (pick one) 3 positive negative unknown (pick one) AS is AH is AS is AH is AS is (pick one) e (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
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 slower at temperatures below
0. °C.
The reverse of this reaction is always
spontaneous but proceeds faster at
temperatures above 12. °C.
Crystallization of a pure compound is
spontaneous only below 48. °C.
AH is
As is
ΔΗ is
AS is
conclusions
AH is
As is
X
✓ (pick one)
positive
negative
unknown
(pick one)
(pick one)
(pick one)
(pick one)
S
î
û
î
↑
↑
Transcribed Image Text: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 slower at temperatures below 0. °C. The reverse of this reaction is always spontaneous but proceeds faster at temperatures above 12. °C. Crystallization of a pure compound is spontaneous only below 48. °C. AH is As is ΔΗ is AS is conclusions AH is As is X ✓ (pick one) positive negative unknown (pick one) (pick one) (pick one) (pick one) S î û î ↑ ↑
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