Solutions and Colligative PropertieshardMCQ SINGLE⭐ Must-Do

Which of the following thermodynamic state functions is strictly less than zero (negative) during thSolutions 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 solution at constant temperature and pressure?

Answer: B

💡 Solution & Explanation

For an ideal solution, $\Delta H_{mix} = 0$ and $\Delta V_{mix} = 0$. Because mixing is a spontaneous process that increases randomness, $\Delta S_{mix} > 0$ and the Gibbs free energy $\Delta G_{mix} < 0$.

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