Q 1.9 Identify the primary reason why the boiling points of successive members of a…
CHEMISTRY · Single correct · A Level · Chemistry · Bonding · Bonding
Problem
Q 1.9 Identify the primary reason why the boiling points of successive members of a straight-chain alkane homologous series increase. []
(1) A The strength of London dispersion forces increases due to greater molecular surface area and polarizability.
(2) B The strength of covalent bonds between carbon and hydrogen atoms increases as the chain lengthens.
(3) C The molecules become more polar, leading to stronger dipole-dipole interactions between chains.
(4) D The mass of the molecules increases, inherently requiring more kinetic energy to overcome inertia during vaporization.