Use the observations about each chemical reaction in the table below to decide the sign (positive or negative) of the reaction enthalpy ΔΗ and reaction entropy AS Note: if you have not been given enough information to decide a sign, select the "unknown" option reaction observations conclusions is one) B Crystallization of a pure compound is spontaneous only below 10. °C ASİS (pick one) This reaction is always spontaneous, but proceeds slower at temperatures below | is (pick one) (pick one) ΔΗ The reverse of this reaction is always spontaneous but proceeds slower at temperatures below 100. °C is (pick one) As is (pick one)