Statement I: Standard enthalpy of isomerization of an enantiomer into the other is zero.<br><br>Stat — Thermodynamics and Thermochemistry Chemistry Question
Question
Statement I: Standard enthalpy of isomerization of an enantiomer into the other is zero.<br><br>Statement II: The two enantiomers of any chiral compound have the same enthalpy of formation.
Answer: A
💡 Solution & Explanation
Since enantiomers have identical physical and chemical properties in an achiral environment, they have the same stability and the same standard enthalpy of formation (ΔfH°). Therefore, the enthalpy change for converting one enantiomer into another (isomerization) is exactly zero (ΔH = 0). Both statements are correct and Statement II is the correct explanation of Statement I.
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