MasteringChemistrys Chapter 11 Liquids, Solids, and Intermolecular Forces) Quest

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MasteringChemistrys Chapter 11 Liquids, Solids, and Intermolecular Forces) Questions-Google Chrome https://session.masteringchemistry.com/myct/itemView?assignmentProblemID-58497147koffset-prev CH122 W16 Barth Helr Close Question8 e previous 8 of 23 next Place these hydrocarbons in order of decreasing boiling point Rank from highest to lowest boiling point. To rank items as equivalent, overlap them paraffin, Ca.Hpro pane, C,Hs octane, C&Hus; 2,2,4-trimethy)pentane, Cal nonadecane, Cala Lowest BP Highest BP The correct ranking cannot be determined. Hints

Explanation / Answer

Since boiling point of a compound depends upon number of carbons present, molecular weight and intra-molecular hydrogen bonding, saturation/unsaturation (i.enumber of double, triple and single bonds) we have to consider all parameters while ranking below molecules.

There sre some basic rules to assign ranking as follows,

As the number of carbon atom increase inturn molecular weight of a coumpound increase boiling point of compound increase. But Increase in number of unsaturation decrease the boiling point of a compound.

[Paraffine]>[Nonadecane]>[Trimethyl pentane = Octane]> [Propane]

[Trimethyl pentane = Octane] they have equivalent boiling point as number of carbon atoms are same and there is no double bond in either of them

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