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In: Chemistry

5. Would it be easier or harder to separate cyclohexane toluene mixture or water methanol mixture?...

5. Would it be easier or harder to separate cyclohexane toluene mixture or water methanol mixture? Explain your answer.

Solutions

Expert Solution

Dear Student , this one is a good question .

Before coming to the answer , it is important to know how can we separate these mixtures . The answer is Distillation.

This process is used to separate mixture on the basis of different boiling point , that is it is used to separate liquid-liquid mixture. As heat is given to the system , liquid with lower boiling point or high volatility evaporates , leaving other liquid in its liquid form . So it becomes clear if two liquid have close boiling points to each other they will be difficult to separate . The volatile lliquid can then be condensed and be separated .

Now coming back to your question deart student , separation of both the mixture that you have mentioned can be done easily as there is considerable difference in thier respective boiling point . Cyclohexane have boiling point of around 80 degree celsius while Toluene has around 110 degree celsius . On the other hand methanol has boiling point 64.7 degree celsius and water 100 degree celsius .

The concept of azeotropes is also there but it is worth discussing here.

hope this helps!   


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