Gasoline is a complex mixture of hydrocarbons, including different isomers of octane. Gasoline is sold with a variety of octane ratings that arebased on the comparison of the gasoline with the combustion properties of isooctane, a structural isomer of CgH18. The structure of isooctaneand another isomer of CgH18 are shown in the figure below, along with their normal boiling points and heats of vaporization. Determine thevapor pressure of each isomer on a very hot summer day, 39.0°C.Price per gallonAll taxes includedPrice per gallonAll taxes includedPrice per gallonAll taxes includedMINIMUM OCTANE RATINGNINIMUM OCTANE RATINGaNIMUM OCTANE RATING(R-M)/2 METHOO(R.M)/ METHOO(A.u)2 METHOD878993PRES SPRESSPRESSImage credit: Stephen VanHorn/ShutterstockIsooctaneTetramethylbutanebp = 98.2°Cbp = 106 5°C bp = 98.2°Cbp = 106.5°C%3DAHvap = 35.8 kJ/molAHvap= 43.3 kJ/mol%3D1st attemptPart 1See Periodic Table See Hint1 atm 760 torrFor isooctane:torrPart 2See HintFor tetramethylbutane:torr

We can use Clausius clapeyron equation for two different temperatures to solve them Clausius…

Gasoline is a complex mixture of hydrocarbons, including different isomers of octane. Gasoline is sold with a variety of octane ratings that are based on the comparison of the gasoline with the combustion properties of isooctane, a structural isomer of CgH18. The structure of isooctane and another isomer of CgH18 are shown in the figure below, along with their normal boiling points and heats of vaporization. Determine the vapor pressure of each isomer on a very hot summer day, 39.0°C. Price per gallon All tanes inluded Price per gallon All taes included Price per gallon All taxes included INIMUM OCTANE RATING MINIMUM OCTANE RATING MLUSMETHOO INIMUM OCTANE RATING IM METHOO ( METHOO 87 89 93 PRESS PRESS PRESS Image credit: Stephen VanHorn/Shutterstock Isooctane Tetramethylbutane bp = 98.2°C bn - 104 FRC

Gasoline is a complex mixture of hydrocarbons, including different isomers of octane. Gasoline is sold with a variety of octane ratings that are based on the comparison of the gasoline with the combustion properties of isooctane, a structural isomer of CgH18. The structure of isooctane and another isomer of CgH18 are shown in the figure below, along with their normal boiling points and heats of vaporization. Determine the vapor pressure of each isomer on a very hot summer day, 39.0°C. Price per gallon All tanes inluded Price per gallon All taes included Price per gallon All taxes included INIMUM OCTANE RATING MINIMUM OCTANE RATING MLUSMETHOO INIMUM OCTANE RATING IM METHOO ( METHOO 87 89 93 PRESS PRESS PRESS Image credit: Stephen VanHorn/Shutterstock Isooctane Tetramethylbutane bp = 98.2°C bn - 104 FRC

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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