For a non-ideal binary liquid solution showing a positive deviation from Raoult's law, which of the — Solutions and Colligative Properties Chemistry Question

💡 Solution & Explanation

In a solution showing positive deviation, A-B interactions are weaker than A-A and B-B interactions. This requires energy absorption ($\Delta H_{mix} > 0$) and causes expansion ($\Delta V_{mix} > 0$). However, because mixing is a spontaneous process, the Gibbs free energy must decrease ($\Delta G_{mix} < 0$) and the entropy must universally increase ($\Delta S_{mix} > 0$).