1 answer

1) Identify whether entropy increases, decreases, or remains unchanged during each of the following processes. a)...

Question:

1) Identify whether entropy increases, decreases, or remains unchanged during each of the following processes. a) Freezing liquid water b) Dissolving sodium chloride crystals into liquid water c) Expanding argon gas isothermally from 2 bar to 1 bar d) Chilling a steel ball bearing from 100 C to 25 oC e) Crystallizing a protein from an aqueous solution _- f) Heat shrink tubing shrinks (2) For each of the following processes predict qualitatively the sign for the change in entropy a) 12(g)-12(s) b) N2(8)-N20) c) CH30H(8) 3/2 02(8)CO2(2 H200) d) 2 SO3()2 02(8) 2 SO(g) (3) The complete combustion of 1-butanol, for which the data below for standard molar entropies at 298.15 K are available: (Gn J/mol-K) 225.7 Determine Asn (in I/mol-K) for this reaction. 205.2 213.8 70.0
1) Identify whether entropy increases, decreases, or remains unchanged during each of the following processes. a) Freezing liquid water b) Dissolving sodium chloride crystals into liquid water c) Expanding argon gas isothermally from 2 bar to 1 bar d) Chilling a steel ball bearing from 100 C to 25 oC e) Crystallizing a protein from an aqueous solution _- f) Heat shrink tubing shrinks (2) For each of the following processes predict qualitatively the sign for the change in entropy a) 12(g)-12(s) b) N2(8)-N20) c) CH30H(8) 3/2 02(8)CO2(2 H200) d) 2 SO3()2 02(8) 2 SO(g) (3) The complete combustion of 1-butanol, for which the data below for standard molar entropies at 298.15 K are available: (Gn J/mol-K) 225.7 Determine Asn (in I/mol-K) for this reaction. 205.2 213.8 70.0

Answers

Entropy is the Measurement of Randomness in the molécules Ha state of matter. D As Eu soled state the molecules are well def@ Crystallizing a protein; Means we are arranging the molecules in a Precise Smecture Centropy decreasel) Meat I shrinks) Tub@ The ginen Reaction is ; CACCH,) ON 16% -> 412) cgj +5 MOCJ 225.7 205.2 213.8 70.0 AS Reaction can be calcedated by a Espard

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