Stearic Acid,nature's Most Common Fatty Acid,dimerizes When Dissolved in Hexane

question 78

Multiple Choice

Stearic acid,nature's most common fatty acid,dimerizes when dissolved in hexane: 2C₁₇H₃₅COOH (C₁₇H₃₅COOH) ₂; ΔH°_rxn = -172 kJ/mol
The equilibrium constant for this reaction at 28°C is 2.9 × 10³.Estimate the equilibrium constant at 38°C.(R = 8.314 J/K• mol)

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

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