| Formation of a solution from two components can be considered as |
| (i) Pure solvent \[\to \]separated solvent molecules, \[\Delta {{H}_{1}}\] |
| (ii) Pure solute\[\to \]separated solute molecules,\[\Delta {{H}_{2}}\] |
| (iii) Separated solvent and solute molecules \[\to \] solution, \[\Delta {{H}_{3}}\] |
| Solution so formed will be ideal if |
A) \[\Delta {{H}_{solution}}=\Delta {{H}_{1}}+\Delta {{H}_{2}}-\Delta {{H}_{3}}\]
B) \[\Delta {{H}_{solution}}=\Delta {{H}_{1}}-\Delta {{H}_{2}}-\Delta {{H}_{3}}\]
C) \[\Delta {{H}_{solution}}=\Delta {{H}_{3}}-\Delta {{H}_{1}}-\Delta {{H}_{2}}\]
D) \[\Delta {{H}_{solution}}=\Delta {{H}_{1}}-\Delta {{H}_{2}}+\Delta {{H}_{3}}\]
Correct Answer: D
Solution :
[d]: \[\Delta {{H}_{solution}}\]is the summation of all the heats involved in the formation of solution.
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