Your distilation flask has a 50/50 minture of compound A and compound B. Compoun

Question

Your distilation flask has a 50/50 minture of compound A and compound B. Compound A has a boiling point of 60C and compound B has a boling point of 90C. If your distillation temperature is at 50C, which is true? Nether compound has reached the bolng point. so there is no vapor above the land O There is some vapor above the kqud tis 50% compound A and 50% compound B, based upon the moture nthe Sask There is vapor above the liquid. i is primarily compound A, because & has a higher vapor pressure than compound B at 50c There r$ vapor abowe the liquid It is due to the impurnies nthe mixture tion 5 Which of the following could provide the same end resut as fractional distilation

Explanation / Answer

Ans : There is vapor above the liquid . It is primarily composed of A , because it has higher vapor pressure than compound B at 50oC.

The boiling point of the liquid is attained at a temperature where the atomospheric pressure becomes equal to the vapor pressure of the liquid. Since here non of the liquids have attained the boiling point , but still the vapor pressure of A is higher duse to its lower boiling point.

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