In a fractionating tower, the crude oil vapors pass from a pipe still into the column. Tar and lubricating stock are the first components to be pulled off at the bottom. Nearer the top kerosene is pulled off followed by gasoline and finally natural gas at the very top. From this information, which has a higher boiling point, gasoline or kerosine?
A. Their boiling points are the same, but kerosene has the greater density.
B. Gasoline has the higher boiling point.
C. Fractional distillation components are pulled off based on molecular weight, so it is not possible to know which has the higher boiling point from the information given.
D. Kerosene has the higher boiling point.
Answer: D
You might also like to view...
What are the landforms shown as a series of small hills near the upper left corner of the map? (Map T-27b will be especially helpful here.) How did they form?
The question is based on Map T-11, the “Whitewater, Wisconsin” quadrangle (scale 1:62,500; contour interval 20 feet; dotted lines represent 10-foot contours), and Map T-27b, a shaded-relief map showing a portion of this area in greater detail. The irregular high ground of “Kettle Moraine State Forest,” running diagonally from the lower left to the right center of the map, is a terminal moraine left by a Pleistocene ice sheet 142°51'34"N, 88°35'59"W). The region northwest of the terminal moraine was once covered by the ice. The region in the southeast corner of the map is the edge of the glacial outwash plain. What will be an ideal response?
The volcano called ________ is the youngest of the Hawaiian volcanoes
Fill in the blank(s) with correct word
What is one disadvantage of using plasma gasification to detoxify hazardous waste?
A. mobility B. toxic ash production C. cost D. groundwater contamination E. low energy use
All of the following are landscaping features of green buildings EXCEPT ________
A) the use of plants that are native to the area where the building is being constructed B) planting deciduous trees to allow light to pass in the winter and shade buildings in the summer C) rain gardens that absorb runoff D) rooftops planted with vegetation E) landscaping with AstroTurf in dry environments