Formation of a solution from two components can be considered as: [AIPMT 2003] |
(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) \[\Delta {{H}_{so\ln }}=\Delta {{H}_{1}}+\Delta {{H}_{2}}-\Delta {{H}_{3}}\]
Correct Answer: C
Solution :
For ideal solution, |
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