What effect does molecular size have on intermolecular forces strength?
What effect does molecular size have on intermolecular forces strength?
Homework Answers
Effect of Molecular size on intermolecular strength.
Intermolecular Force is the force off attraction between the atoms within a molecule. The molecules with larger size have stronger intermolecular force than molecules with smaller size. Because bigger molecules have more places where they can be attracted to other, hence due to larger surface area of attraction, the bonding or force of attraction get stronger.
Thus bigger molecules also posses higher boiling points. As more energy is needed to break the strong intermolecular bonds.
Ex- The intermolecular force in Butane is more than that in Methane.
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What effect does molecular size have on intermolecular forces
strength?
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Intermolecular forces (IMPs) are the forces of attraction (or sometimes repulsion) that act between neighboring molecules All IMPs are based on etectrostatic interaction and are relatively weak compared to the Intramolecular forces that hold the atoms within a molecular together. In today, workshop you will practice to identify IMFs and predict their effect on boiling point melting point, vapor pressure and enthalpy of vaporisation (Delta Hvap). The Delta Hvap for a given molecule is the energy required to transform a...
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Order the three types of intermolecular forces: dipole-dipole, London force, hydrogen bonds in terms of strength from weakest to strongest. Give a brief description of each of the different intermolecular forces. Question 24 (6 points) The boiling points for H2O (BP = 100°C) and HS (BP-60°C) are drastically different despite oxygen and sulfur being next to each other on the periodic table. Explain these differences in boiling points utilizing your labels of intermolecular forces and the relative strength of the...
9. Is the strength of intermolecular forces determined by the bond strengths within the individual molecules? Explain your reasoning.
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