The two different procedures for the synthesis of N , N - dimethylacetamide are to be stated. Concept introduction: Amides are formed by the substitution of hydroxyl group ( -OH ) of carboxylic acid by an amine group ( -NH 2 ) . In amide functional group , the carbonyl carbon atom is connected to a nitrogen atom. The general formula of amide is R-CO-NR 2 ' .

Question

Using the conditions of spontaneity to deduce the signs of AH and AS 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 A The reverse of this reaction is always spontaneous but proceeds faster at temperatures above -48. °C. ΔΗ is (pick one) ✓ AS is (pick one) B This reaction is spontaneous except below 114. °C but proceeds at a slower rate below 135. °C. ΔΗ is (pick one) AS is (pick one) ΔΗ is C This reaction is exothermic and proceeds faster at temperatures above -43. °C. (pick one) AS is (pick one) v Х 5 ? 18 Ar

Answer 1

Question

Chapter 16, Problem 16.30E

Interpretation Introduction

Interpretation:

The two different procedures for the synthesis of N,N- dimethylacetamide are to be stated.

Concept introduction:

Amides are formed by the substitution of hydroxyl group (-OH) of carboxylic acid by an amine group (-NH2). In amide functional group, the carbonyl carbon atom is connected to a nitrogen atom. The general formula of amide is R-CO-NR2'.

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