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strong
Heather Tremblay
Wiki User
∙ 11y agoIntermolecular forces -
Van Der Waals (London Dispersion Forces) mainly
Also includes Dipole-Dipole and Induced-Dipole forces in certain compounds,
These are weak however so all can be classed together when broken ( Vapourized into a gas)
Considerable strengths are Hydrogen Bonding (If H and Fluorine, Oxygen or Nitrogen) are present in the sample.
E.g the Entropy of Vapourization of most liquids is 85 - 90 Joules per Kelvin Per Mole
However for water (with Hydrogen Bonding) it is around 110 Joules Per Kelvin per Mole.
Summary - Intermolecular forces, special if have Hydrogen Bonding (1/10th covalent bond)
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What do dipole dipole forces do?
Hold polar molecules together
How do intermolecular forces determine a substance's state?
If the intermolecular forces are great enough they can hold the molecules together as a liquid. If they are even stronger they will hold the molecules together as a solid. Water has nearly the same mass as methane and ammonia molecules, but the greater molecular forces between water molecules causes the water to be liquid at room temperature, while ammonia and methane, with weaker intermolecular forces, are gases at room temperature.
What forces typically hold separate molecules together?
intermolecular forces D:
Why are some atoms or molecules in liquid form and not a solid?
The atoms and molecules in liquids move in a random pattern relative to one another instead of being in a solid form due to the intermolecular forces of attraction. The intermolecular forces are too weak to hold onto the molecules in a solid form.
Carbon tetrachloride CCl4 is nonpolar what forces hold the molecules together?
London Dispersion Forces
What do the molecules in a liquid hold together?
your mom ( . Y . )
What do dipole dipole forces do?
Hold polar molecules together
How do intermolecular forces determine a substance's state?
If the intermolecular forces are great enough they can hold the molecules together as a liquid. If they are even stronger they will hold the molecules together as a solid. Water has nearly the same mass as methane and ammonia molecules, but the greater molecular forces between water molecules causes the water to be liquid at room temperature, while ammonia and methane, with weaker intermolecular forces, are gases at room temperature.
What forces typically hold separate molecules together?
intermolecular forces D:
Why are some atoms or molecules in liquid form and not a solid?
The atoms and molecules in liquids move in a random pattern relative to one another instead of being in a solid form due to the intermolecular forces of attraction. The intermolecular forces are too weak to hold onto the molecules in a solid form.
What do dipole-dipole forces do?
Hold Polar molecules together
Do liquid particles have bonds?
The liquid particles, if molecules, have bonds which hold the ATOMS together in the molecule. There are also intermolecular forces of attraction BETWEEN the molecules.
Carbon tetrachloride CCl4 is nonpolar what forces hold the molecules together?
London Dispersion Forces
What type of intermolecular forces hold morphine molecules together?
hydrogen bonds
What do you call the forces that hold all atoms and molecules together?
Chemical Bonds
Which state of matter is most affected by the shape of it container?
Gas, then liquid, and finally solid. Gases have the weakes intramolecular forces of attraction (the forces that hold molecules of a substance together), and therefore have the most freedom to move about.
What type of forces hold subatomic forces together?
between molecules the forces are called intermolecular forces, and between the atoms in a molecule they are called inramolecular forces
