Which of the following thermodynamic state functions is strictly less than zero (negative) during th — Solutions and Colligative Properties Chemistry Question
Question
Which of the following thermodynamic state functions is strictly less than zero (negative) during the spontaneous formation of an ideal binary liquid solution?
Answer: B
💡 Solution & Explanation
For an ideal solution, the enthalpy change ($\Delta H_{mix}$) and volume change ($\Delta V_{mix}$) are strictly zero. Because mixing is a spontaneous process, the Gibbs free energy must decrease ($\Delta G_{mix} < 0$), and the entropy must increase ($\Delta S_{mix} > 0$).
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