# vapor pressure, torrన్ ిక్లీ ీ క్లీ క్లీ క్లీlaSUWS hOW the vapor pressure of three liquids varies with temperature:900-800-700600500-400300200isobutyl alcoholacetylacetoneorthoxylene1000100110120130140temperature, °CUse the graph to answer the following questions:Which liquid is the most volatile?most volatile:choose oneWhich is the least volatile?least volatile:choose onecCcisobutyl alcohol:What is the normal boiling point of each liquid?Note: your answer must be within 1°C of the exactanswer to be graded correct.acetylacetone:orthoxylene:Suppose a beaker of acetylacetone is put inside asealed tank containing acetylacetone gas at 131.degree C and 616. torr. After ten minutes, will therebe more liquid in the beaker, less liquid, or the sameamount?morelessthe sameContinue

Question
Asked Dec 1, 2019
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Please answer all parts 1,2 and 3

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## Expert Answer

Step 1

The vapor pressure-temperature graph of isobutyl alcohol, acetylacetone, and ortho-xylene is given as shown below.

Step 2

In above graph, the isobutyl alcohol is represented by black line, the acetylacetone is represented by green line, and ortho-xylene is represented by blue line.

It is known that the temperature at which the vapor pressure of any liquid becomes equal to the atmospheric pressure, is termed as boiling point. The atmospheric pressure id 760 torr.

The temperature corresponds to the 760 torr is the boiling point of corresponding liquid.

Step 3

Part (b)

For isobutyl alcohol (black line), the 760 torr vapor pressure corresponds to the 108 oC temperature. Therefore, the boiling point of isobutyl alcohol is 108 oC.

For acetylacetone (green line), the 760 torr vapor pressure corresponds to the 138 oC temperature. Therefore, the boiling point of acetylacetone is 138 o...

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