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Of CO2, CS2 and CSe2, CO2 is the smallest molecule whereas CSe2 is the largest molecule. The same pattern exists in the strength of the intermolecular forces. All three are linear, non polar molecules.

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Why do the melting and boiling points of a particular subsatnce vary?

It is because the intermolecular forces(the attractive forces between the molecules of a substance) differ from one substance to another. The chemical with the stronger intermolecular forces will have higher melting and boiling points, and vice versa. This is because more energy is required to separate the molecules to melt or boil the substance, if the forces are strong. The factors that determine the size of these forces are :the type of bonding in the molcules, andthe mass of the molecules.


Are all intermolecular forces similar?

They vary depending on the molecules under consideration. They are all electrostatic in nature deriving from the interaction of permanent or instantaneous dipoles. They are lumped together as Van der Waals forces but can be considered to be of 3 types:-Keesom forces permanent dipole dipole interactionsDebye forces; permanent dipole interaction with induced dipole,London dispersion forces ; interaction between two instantaneous dipoles.


Why two different substances have different melting point?

Different substances have different melting points because the strength of intermolecular forces (such as hydrogen bonding, dipole-dipole interactions, and London dispersion forces) vary between substances. Substances that have stronger intermolecular forces require more energy to overcome them, resulting in a higher melting point. Conversely, substances with weaker intermolecular forces have lower melting points as they require less energy to transition from solid to liquid state.


How do intermolecular forces compare to covalent and ionic bonds in terms of strength?

Intermolecular forces are weaker than covalent and ionic bonds. Covalent bonds involve the sharing of electron pairs between atoms, making them strong and stable. Ionic bonds involve the transfer of electrons from one atom to another, creating strong electrostatic attractions between oppositely charged ions.


What is the force that exits between two molecules?

The force that exists between two molecules is typically called intermolecular forces. These forces can include van der Waals forces, hydrogen bonding, or electrostatic interactions. The strength of these forces can vary depending on the molecules involved and their structure.

Related Questions

What is the dependent variable and a independent variable on the effect of intermolecular forces on the rate of evaporation?

In the study of the effect of intermolecular forces on the rate of evaporation, the dependent variable is the rate of evaporation, as it is what is being measured or observed in response to changes. The independent variable is the strength of the intermolecular forces, which can vary between different substances (e.g., hydrogen bonding, dipole-dipole interactions, or van der Waals forces) and influences how quickly molecules escape from the liquid phase to the vapor phase.


Why do the melting and boiling points of a particular subsatnce vary?

It is because the intermolecular forces(the attractive forces between the molecules of a substance) differ from one substance to another. The chemical with the stronger intermolecular forces will have higher melting and boiling points, and vice versa. This is because more energy is required to separate the molecules to melt or boil the substance, if the forces are strong. The factors that determine the size of these forces are :the type of bonding in the molcules, andthe mass of the molecules.


How are the melting points of ionic compounds different from molecular compounds?

Very much higher.


Are all intermolecular forces similar?

They vary depending on the molecules under consideration. They are all electrostatic in nature deriving from the interaction of permanent or instantaneous dipoles. They are lumped together as Van der Waals forces but can be considered to be of 3 types:-Keesom forces permanent dipole dipole interactionsDebye forces; permanent dipole interaction with induced dipole,London dispersion forces ; interaction between two instantaneous dipoles.


What is an intermolecular spacing?

Intermolecular spacing refers to the distance between adjacent molecules in a substance. This spacing can vary significantly depending on the state of matter; for example, molecules in a gas are far apart, while in a solid, they are closely packed. The intermolecular spacing influences properties such as density, phase behavior, and intermolecular forces. Understanding this spacing is crucial in fields like chemistry and materials science.


Why two different substances have different melting point?

Different substances have different melting points because the strength of intermolecular forces (such as hydrogen bonding, dipole-dipole interactions, and London dispersion forces) vary between substances. Substances that have stronger intermolecular forces require more energy to overcome them, resulting in a higher melting point. Conversely, substances with weaker intermolecular forces have lower melting points as they require less energy to transition from solid to liquid state.


How do intermolecular forces compare to covalent and ionic bonds in terms of strength?

Intermolecular forces are weaker than covalent and ionic bonds. Covalent bonds involve the sharing of electron pairs between atoms, making them strong and stable. Ionic bonds involve the transfer of electrons from one atom to another, creating strong electrostatic attractions between oppositely charged ions.


What is the force that exits between two molecules?

The force that exists between two molecules is typically called intermolecular forces. These forces can include van der Waals forces, hydrogen bonding, or electrostatic interactions. The strength of these forces can vary depending on the molecules involved and their structure.


What forces typically separate molecules?

Typically, intermolecular forces such as hydrogen bonding, London dispersion forces, and dipole-dipole interactions are responsible for separating molecules. These forces can vary in strength depending on the nature of the molecules involved.


True or False .Forces on Earth are different from those elsewhere in the universe?

False. The forces acting on Earth, such as gravity and electromagnetism, are the same fundamental forces that exist throughout the universe. However, the strengths of these forces can vary depending on the mass and distance of objects involved.


Is the force of attraction between molecules weak or strong?

The force of attraction between molecules can vary in strength, depending on the types of molecules involved. Generally, these intermolecular forces are weaker than the forces holding atoms together in a molecule. Examples of weak intermolecular forces include van der Waals forces and hydrogen bonding.


The forces of attraction between molecules in a molecular compound are generally?

The forces of attraction between molecules in a molecular compound are generally weaker than those in an ionic compound. These forces are typically known as van der Waals forces or London dispersion forces, which are based on temporary fluctuations in electron distribution within the molecules. The strength of these forces can vary depending on the molecular structure and shape of the compound.