This graph shows how the vapor pressure of three liquids varies with temperature:vapor pressure, torr900-800-700-600-500-400.300.200-100-0506080temperature, °CUse the graph to answer the following questions:70Which liquid is the most volatile?Which is the least volatile?What is the normal boiling point of each liquid?Note: your answer must be within 1°C of the exactanswer to be graded correct.Suppose a beaker of acetone is put inside a sealedtank containing acetone gas at 54. degree C and709. torr. After ten minutes, will there be more liquidin the beaker, less liquid, or the same amount?tetrahydrofuranacetoneisopropyl acetatemost volatile:least volatile:90tetrahydrofuran:acetone:isopropyl acetate:morelessthe samechoose onechoose oneпоспос[°℃

The compounds which are easily vapourised are called volatile compounds.Lesser the intermolecular force of attraction, greater volatile the compound is. Volatile substances have high vapour pressure. Volatility of compound α Vapour pressureOrder of vapour pressure : isopropyl acetate <tetrahydrofuran<acetoneOrder of volatile compound : isopropyl acetate <tetrahydrofuran<acetoneFrom the graph, The boiling point of tetrahydrofuran = 65°C The boiling point of acetone = 56°C The boiling point of isopropyl acetate = 89°C The vapour pressure of acetone is approx 714 torr at 54 oC as shown below in graphSince the pressure of acetone is almost same as the vapour pressure of acetone at 54oC. Hence , there will be no change in volume. A) Most volatile : Acetone Least volatile : Isopropyl acetate B) The boiling point of tetrahydrofuran = 65°C The boiling point of acetone = 56°C The boiling point of isopropyl acetate = 89°CC) The volume will remain same.