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16 Nov 2019
Give an answer which refutes the incorrect statements and identifies the correct answer as to which compound has a HIGHER boiling point as stated in the prompt.
Hydrocarbons of varying lengths and shapes form fatty acids and other structural compounds. Two structures for C8H18 are shown below. Which one has a higher boiling point and why? CH H30- CH H2C CH CH CH A. n-octane: linear, unbranched alkanes experience more surface area contact than comparable branched alkanes and have greater Van der Waals forces acting on them. B. n-octane: the atom pairs in octane have a smaller electronegativity difference than those in 2,3,4-trimethylpentane. C. 2,3,4-trimethylpentane: the boiling point of an alkane is inversely proportional to chain length and directly proportional to number of substituents D. 2,3,4 trimethylpentane: the increased branching gives the molecule a greater net dipole moment than n-octane.
Give an answer which refutes the incorrect statements and identifies the correct answer as to which compound has a HIGHER boiling point as stated in the prompt.
Hydrocarbons of varying lengths and shapes form fatty acids and other structural compounds. Two structures for C8H18 are shown below. Which one has a higher boiling point and why? CH H30- CH H2C CH CH CH A. n-octane: linear, unbranched alkanes experience more surface area contact than comparable branched alkanes and have greater Van der Waals forces acting on them. B. n-octane: the atom pairs in octane have a smaller electronegativity difference than those in 2,3,4-trimethylpentane. C. 2,3,4-trimethylpentane: the boiling point of an alkane is inversely proportional to chain length and directly proportional to number of substituents D. 2,3,4 trimethylpentane: the increased branching gives the molecule a greater net dipole moment than n-octane.
Jarrod RobelLv2
9 Aug 2019