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Stearic Acid, Nature's Most Common Fatty Acid, Dimerizes When Dissolved

Question 97

Multiple Choice

Stearic acid, nature's most common fatty acid, dimerizes when dissolved in hexane: 2C17H35COOH Stearic acid, nature's most common fatty acid, dimerizes when dissolved in hexane: 2C<sub>17</sub>H<sub>35</sub>COOH (C<sub>17</sub>H<sub>35</sub>COOH) <sub>2</sub> ΔH°<sub>rxn</sub> = -172 kJ The equilibrium constant for this reaction at 28°C is 2900. Estimate the equilibrium constant at 38°C. A) 4.7 × 10<sup>5</sup> B) 2.6 × 10<sup>4</sup> C) 1.9 × 10<sup>3</sup> D) 3.2 × 10<sup>2</sup> E) 18 (C17H35COOH) 2 ΔH°rxn = -172 kJ
The equilibrium constant for this reaction at 28°C is 2900. Estimate the equilibrium constant at 38°C.


A) 4.7 × 105
B) 2.6 × 104
C) 1.9 × 103
D) 3.2 × 102
E) 18

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