When a substance melts, the molecules vibrate so much that they can no longer stick together and slide around more and more freely, but still stay close together.
The particles move more quickly and begin to move from place to place
Changes very easy
The average kinetic energy of the particles falls.
The particles are moving away from one another during melting.
During melting the temperature remain constant if it was achieved the melting point.
The substance would be in a liquid and gas state, this would be due to vaporization that is happening during boiling.
The original substances are transformed during a chemical reaction a new substance (compound) is obtained.
When something is heated the particles inside it begin to move faster and faster and that causes the heat, when something is frozen the opposite occurs the particles inside it move slower and slower and probably stop moving all together
The particles are affecting the form of a chemical substance and not turning into a new substance.
The average kinetic energy of the particles falls.
Its the degree of attachment between the molecules of the substance: frozen (solid) the arrangement is fixed. melted (liquid) the arrangement is loose enough to be modified by gravity. evaporated: (gas) the attachment becomes insignificant.
The particles of the substance gain kinetic energy as they absorb heat energy. Eventually there is enough kinetic energy for the particles to escape the liquid phase, forming the gas phase.
The particles of the substance gain kinetic energy as they absorb heat energy. Eventually there is enough kinetic energy for the particles to escape the liquid phase, forming the gas phase.
condensation and melting
The particles are moving away from one another during melting.
No. When a substance melts it absorbs energy.
The particles start to move randomly as the process of the liquid starts to form. So during the transformation the bond between the particles start to move. The particles begin to move randomly, and then the crystalline forms a liquid. The faster the particles move the more it transforms into a liquid.
The substance absorbs the heat of fusion. The temperature does not go up, but the form of the substance changes.
During melting the temperature remain constant if it was achieved the melting point.