Interpretation:
Ion-dipole, induced dipole-induced dipole, dipole-dipole in gas phase, ion-ion and dipole-dipole in solid phase in order of their strengths has to be arranged.
Concept Introduction:
Intermolecular forces are forces that are responsible for interaction between molecules. Such forces include both attractive as well as repulsive forces.
Types of intermolecular forces:
1. Ion-dipole forces: These forces come into play when ions interact with polar molecules. Ion gets attracted to oppositely charged end of polar molecule.
2. Dipole-dipole forces: These forces arise when there is interaction between oppositely charged ends of different dipoles.
3. London forces: These forces exist when there is interaction between nonpolar molecules. There occurs distortion in symmetry of electron clouds when two nonpolar molecules come closer to each other. Such forces exist in all molecules and therefore London forces are called universal.
4. Hydrogen bonding: This intermolecular force exists when hydrogen atoms are connected to highly electronegative elements like
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CHEM PRINCIPLES LL W/ACHIEVE ONE-SEM
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- Name the type(s) of intermolecular forces that exists between molecules (or basic units) in each of the following species and identify the following species that are capable of hydrogen-bonding among themselves. (a) C2H6, (b) HI, (c) KF, (d) BeH2, (e) CH3COOHarrow_forwardDetermine the strongest intermolecular force for the following molecule. Both Land X are nonmetals. Electronegativity: L< X :X:arrow_forwardWhich type/s of intermolecular forces will be exhibited by a pure sample of PH3? Justify your answerarrow_forward
- Indicate the strongest force present in samples of each of the following compounds: (a) N2 - Dispersion - Dipole-dipole - Hydrogen bonding - Ionic bonding (b) NH3 - Dispersion - Dipole-dipole - Hydrogen bonding - Ionic bonding (c) OSCl2 (S is central atom) - Dispersion - Dipole-dipole - Hydrogen bonding - Ionic bonding (d) KBr - Dispersion - Dipole-dipole - Hydrogen bonding - Ionic bonding (e) CH3CH2CH2CH3 - Dispersion - Dipole-dipole - Hydrogen bonding - Ionic bondingarrow_forward2HAMB Two water molecules are separated by 2.72 Å in air. Use the equation V = to calculate the strength of the dipole-dipole interaction. The dipole moment of water is 1.82 D. 4.0 kJ•mol-1arrow_forwardWhich of the following compounds exhibit London dispersion forces: (a) NH 3; (b) H 2O; (c) HCl; (d) ethane (C 2H 6)?arrow_forward
- 6,7arrow_forwardWrite the difference between ferromagnetism and anti-ferromagnetism.arrow_forward(a) Consider a substance where the intermolecular forces hold the molecules in fixed rigid positions. What is the process called when enough heat has been added to the substance so that the molecules begin to flow? (b) Consider a substance where the intermolecular forces hold the molecules in close contact with each other, but the molecules can flow. What is the process called when enough heat has been added to the substance so that the molecules escape each other? (c) Consider a substance where the intermolecular forces hold the molecules in fixed rigid positions. What is the process called when enough heat has been added to the substance so that the molecules can escape each other?arrow_forward
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