Question

Which is the most important factor in determining the state of a substance?
the size of the atoms in a substance
the number of molecules in a substance
the position of the electrons on the outer valence shells
the balance between intermolecular forces and kinetic energy

Answer 1

Answer:

The balance between intermolecular forces and kinetic energy

Explanation:

If the kinetic energies of the particles are not strong enough to overcome the intermolecular forces, the particles will be locked in place in a crystal lattice. The substance will be a solid.

If the kinetic energies of the particles are slightly stronger than the intermolecular forces, the particles will be able to slide past each other. The substance will be a liquid.

If the kinetic energies of the particles are much stronger than the intermolecular forces, the particles will be escape completely from the attractions of their neighbours. The substance will be a gas.

Answer 2

The balance between intermolecular forces and kinetic energy. thus option D is correct.

What is kinetic energy?

Kinetic energy, form of energy that an object or a particle has by reason of its motion.

If the kinetic energies of the particles are not strong enough to overcome the intermolecular forces, the particles will be locked in place in a crystal lattice. The substance will be a solid.

If the kinetic energies of the particles are slightly stronger than the intermolecular forces, the particles will be able to slide past each other. The substance will be a liquid.

If the kinetic energies of the particles are much stronger than the intermolecular forces, the particles will be escape completely from the attractions of their neighbours. The substance will be a gas.

Learn more about kinetic force here:

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