Liquid A has a vapor pressure of 200. torr at 25 °C and liquid B has a vapor pressure of 300. torr at 25 °C. Equal moles of these liquids are mixed at 25 °C, and the vapor pressure of the solution is measured to be 240. torr. What can be concluded from this measurement? A. A and B form an ideal solution. B. A-B attractions are stronger than A-A and B-B attractions. C. A-A and B-B attractions are stronger than A-B attractions. D. When A and B are mixed, AH> 0 (endothermic reaction). E. There is repulsion between molecules A and B.

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Solutions

Solutions can be considered as homogeneous mixtures which contain two or more than two chemical substances. The chemical substance which is the greater part is defined as solvent. And the chemical substance that is dissolved in a solvent is referred to as solute. Solution chemistry plays an important role in chemistry since it supports many commercial applications of solutions.