Contents
What is the effect of intermolecular forces on the properties?
As the intermolecular attraction increases, • The vapor pressure ( the pressure of the vapor that is in equilibrium with its liquid) decreases • The boiling point ( the temperature at which the vapor pressure becomes equal to the pressure exerted on the surface of the liquid) increases • Surface tension ( the …
What are the 5 properties affected by intermolecular forces?
The physical properties of melting point, boiling point, vapor pressure, evaporation, viscosity, surface tension, and solubility are related to the strength of attractive forces between molecules. These attractive forces are called Intermolecular Forces.
How do intermolecular forces explain the properties of substances?
Intermolecular forces explain the physical properties of substances. The stronger the force, the more difficult it is to pull molecules away from each other. For example: Solubility-Substances of like intermolecular forces mix.
What properties depend on intermolecular forces?
The viscosity, diffusion, and surface tension are examples of physical properties of liquids that depend on intermolecular forces. Vapor pressure, critical point, and boiling point are examples of properties of gases. Melting and sublimation are examples of properties of solids that depend on intermolecular forces.
How does the strength of intermolecular forces affects the physical properties of matter?
The physical properties of biological substances depend on the intermolecular forces present. As the strength of forces decreases, so do the melting points, boiling points, and solubility in water. Besides that, the vapor pressure and the solubility in nonpolar solvents also increase.
Which intermolecular force is the strongest?
Ion-dipole forces
Explanation: Ion-dipole forces are the strongest of the intermolecular forces. Hydrogen bonding is a specific term for a particularly strong dipole-dipole interaction between a hydrogen atom and a very electronegative atom (oxygen, fluorine, or nitrogen).
The types of intermolecular forces that occur in a substance will affect its physical properties, such as its phase, melting point and boiling point. You should remember from the kinetic theory of matter (see Chemistry 103 ), that the phase of a substance is determined by how strong the forces are between its particles.
Why do intermolecular forces decrease as you go from solid to liquid?
Intermolecular (or interparticle ) forces are weak interactions between particles. They decrease as you go from solid Æ liquid Æ gas. Remember that in a gas the particles have the highest degree of freedom of movement and negligible or weak intermolecular forces. As the intermolecular attraction increases,
What are the forces that hold molecules together?
The forces between molecules that bind them together are known as intermolecular forces. Intermolecular forces allow us to determine which substances are likely to dissolve in other substances, and what the melting and boiling points of substances are. Without intermolecular forces holding molecules together we would not exist.
How does intermolecular attraction affect the boiling point?
As the intermolecular attraction increases, •The vapor pressure ( the pressure of the vapor that is in equilibrium with its liquid) decreases •The boiling point ( the temperature at which the vapor pressure becomes equal to the pressure exerted on the surface of the liquid) increases