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van der waals and hydrogan bond concept should be clear to answer this question

2006-08-25 05:59:34 · 12 answers · asked by indian 2 in Science & Mathematics Chemistry

12 answers

Hydrogen bonds are in general stronger than intermolecular bonds due to the Van der Waal force, but not always. It depends on the type of hydrogen bonding versus the type of van der Waal force.

Van der Waals force refers to a particular class of intermolecular forces that arise from the polarization of molecules into dipoles. This includes forces that arise from fixed or angle-averaged dipoles (Keesom forces) and free or rotation dipoles (Debye forces) as well as shifts in electron cloud distribution (London forces). Interaction strength due to London dispersion is about 2 kJmol-1, and dipole-dipole interactions are about 0.6 to 2 kJmol-1.

Hydrogen bonds, also a type of intermolecular force, exists between two partial electric charges of opposite polarity, and as the name implies, one part of the bond involves a hydrogen atom. It is stronger than most other intermolecular forces, but is much weaker than both the ionic bond and the covalent bond. Hydrogen bonds can vary in strength from very weak (1 to 2 kJmol-1) to very strong (40 kJmol-1), which is equivalent to covalent bonds.

2006-08-25 06:24:22 · answer #1 · answered by PhysicsDude 7 · 2 0

Van Der Waals Bonding

2016-11-07 02:31:23 · answer #2 · answered by ? 4 · 0 0

off course,Hydrogen bond stronger than Van Der Waals force

2006-08-26 01:03:54 · answer #3 · answered by fatma m 2 · 0 0

Definitely stronger than Van der Waal forces.

2006-08-25 11:22:54 · answer #4 · answered by Alan Turing 5 · 0 0

A hydrogen bond is much stronger than van der waals forces of attraction.

Hydrogen bonds occur when fluorine, oxygen, or nitrogen combine with hydrogen. It is a very strong intermolecular force.

Van der Waals are between non-polar molecules. It is the weakest form of intermolecular forces. They become stronger with an increase in mass, and weaker with an increase in distance between the molecules.

2006-08-25 06:14:21 · answer #5 · answered by fh4life92 2 · 0 0

Stronger. The order of Intermolecular forces is

ion-ion > H-bond > dipole-dipole > Van der waals (London Dispersion)

2006-08-25 06:05:27 · answer #6 · answered by Duluth06ChE 3 · 0 0

H-bonds are stronger than van der waals.

2006-08-25 06:04:09 · answer #7 · answered by shiara_blade 6 · 0 0

van der waals force is the weakest of them all so hydrogen bonds are much stronger.

2006-08-25 07:27:43 · answer #8 · answered by BeC 4 · 0 0

hydrogen bond is a special case of van der walls bonds.
other cases of van der walls force are dipolr-dipole, dipole-induced dipole, london dispersion, etc.

2006-08-25 06:12:14 · answer #9 · answered by jasmine 2 · 0 1

vander waals bond are d weakest known bonds

2006-08-25 06:06:36 · answer #10 · answered by smiley 2 · 0 0

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