下列化學物品的boiling point

1-pentene<2-pentanone< pentanamine<3-pentanol



pentanamine due to O is more electronegative than N
pentanal is straight chain has a greater van der waals' force due to greater contact surface area for molecules to contact each other comparing the branched one 2-pentanone
methoxybutane has shortest carbon chain hence weakest van der waals' force but the O atom makes it have permenant dipole dipole attraction force. Hence greater BP than 1-pentene

2007-01-22 19:30:06 補充：
Some error occurs1-pentene

2007-01-22 19:31:17 補充：
H-bond formed by 3-pentanol pentanamine due to O is more electronegative than Npentanal is straight chain has a greater van der waals' force due to greater contact surface area for molecules to contact each other comparing the branched one 2-pentanone

2007-01-22 19:31:33 補充：
methoxybutane has shortest carbon chain hence weakest van der waals' force but the O atom makes it have permenant dipole dipole attraction force. Hence greater BP than 1-pentene

2007-01-22 19:33:23 補充：
1-pentene

2007-01-22 19:37:12 補充：
1-pentene;methoxybutane;2-pentanone;pentanal; pentanamine;3-pentanol;pentanoic acidl-pentene is smallest BPdue to only weak van der waals forcepentanoic acid greater BP due to hydrogen bond formed.

2007-01-22 19:41:25 補充：
Sorry 出唔到大過(

2007-01-22 19:42:18 補充：
Sorry 出唔到大過的這個數學符號