• # question_answer                 Formation of a solution from two components can be considered as:                                                      (1) pure solvent $\to$ separated solvent molecules, $\Delta {{H}_{1}}$                 (2) pure solute $\to$ separated solute molecules, $\Delta {{H}_{2}}$                 (3) separated solvent and solute molecules $\to$ solution, $\Delta {{H}_{3}}$                         Solution so formed will be ideal if: A)                 $\Delta {{H}_{so\ln }}=\Delta {{H}_{1}}-\Delta {{H}_{2}}-\Delta {{H}_{3}}$                                                B)                 $\Delta {{H}_{so\ln }}=\Delta {{H}_{3}}-\Delta {{H}_{1}}-\Delta {{H}_{2}}$ C)                 $\Delta {{H}_{so\ln }}=\Delta {{H}_{1}}+\Delta {{H}_{2}}+\Delta {{H}_{3}}$                              D)                 $\Delta {{H}_{so\ln }}=\Delta {{H}_{1}}+\Delta {{H}_{2}}-\Delta {{H}_{3}}$

For ideal solution,                 $\Delta {{H}_{solution}}=\Delta {{H}_{1}}+\Delta {{H}_{2}}+\Delta {{H}_{3}}$