Consider a 50% by mass liquid solution of ethanol (CH3CH2OH) and H2O confined in a closed but thermally-conducting container (maintained at 25 °C).  Which of the following statements is TRUE for this system at equilibrium condition? Select one: a.The gas phase just above the liquids solution has a higher mole fraction of gaseous ethanol than water vapor. b.The gas phase just above the liquid solution is composed of pure ethanol. c.No gases of H2O or ethanol is present above the liquid solution at 25 °C since their boiling points are way above this temperature. d.The gas phase just above the liquid solution is composed of pure H2O.

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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.