Intermolecular forces are any forces exerted on neighboring molecules of a given compound. The forces are not the actual chemical bonds present in the substance, but rather the substances own attractiveness to its own molecules. These intermolecular forces play a crucial role in determining a compounds various physical properties such as but not limited to :solubility, melting point, boiling point, density.
The strongest intermolecular force present in ibuprofen is dipole-dipole interactions. Ibuprofen contains polar covalent bonds due to the differences in electronegativity between the atoms, leading to the formation of partial positive and negative charges. These partial charges allow ibuprofen molecules to attract each other through dipole-dipole interactions.
The intermolecular force that exists between Na and water is primarily ionic bonding. When Na is placed in water, the water molecules surround the Na ions and form hydration shells due to the attraction between the positively charged Na ions and the negatively charged oxygen atoms in water molecules.
Intermolecular forces
Dispersion forces (London dispersion forces) are generally the weakest type of intermolecular force. These forces are caused by temporary fluctuations in electron distribution around atoms or molecules, leading to weak attractions between them.
Neon can exhibit London dispersion forces, which are a type of weak intermolecular force that occurs between all atoms and molecules. These forces result from the temporary fluctuations in electron distribution within an atom or molecule.
The intermolecular forces in Ne are London dispersion forces. Neon is a noble gas and lacks a permanent dipole moment, so the only intermolecular force present is the weak temporary dipole-induced dipole interactions.
The state of matter depends on the number of atoms / molecules in a given area / volume. If there are more number of molecules, then it will be in solid state and if it is very less molecules then gases. This inturn may depend on the intermolecular force of attraction between the atoms in them. In the case of solids, the force of attraction is high and hence there are more number of molecules present.
The type of intermolecular force present in H2S is dipole-dipole forces. H2S molecule has a significant dipole moment due to the difference in electronegativity between sulfur and hydrogen atoms, resulting in the attraction between the δ+ hydrogen and δ- sulfur atoms of neighboring molecules.
Iron is a metal and does not typically form molecules with strong intermolecular forces. Instead, iron atoms are held together by metallic bonding which is a type of attractive force between metal atoms.
Dipole forces and London forces are present between these molecules.
The intermolecular forces in Cl2 are London dispersion forces, which are the weakest type of intermolecular force. This occurs due to temporary fluctuations in electron distribution.
The type of intermolecular force present in Br2 is London dispersion forces. These forces are the weakest of the intermolecular forces and result from temporary fluctuations in electron distribution around the molecule, leading to a temporary dipole moment.
In molecules of NO (nitric oxide), the main intermolecular force present is dipole-dipole interactions due to the polar nature of the molecule. Additionally, there are weaker London dispersion forces between NO molecules. Hydrogen bonding does not occur in NO as it lacks hydrogen atoms bonded to highly electronegative atoms like oxygen, nitrogen, or fluorine.
The force between molecules of a compound is called intermolecular force. It is weaker than the chemical bonds holding the atoms together within a molecule. Intermolecular forces include van der Waals forces, hydrogen bonding, and dipole-dipole interactions.
Water (H2O) has stronger intermolecular forces than ammonia (NH3) due to hydrogen bonding in water molecules. Hydrogen bonding is a type of intermolecular force that is stronger than the dipole-dipole interactions present in ammonia molecules.
The intermolecular force present in PCl3 is dipole-dipole interactions. This is because PCl3 is a polar molecule, with a net dipole moment due to the unequal sharing of electrons between phosphorus and chlorine atoms.