Explanation:
When we increase the temperature then kinetic energy of particles in a solid substance increases. As a result, collisions between the particles increases.
This leads to decrease in force of attraction between the particles of solid. Therefore, the solid will start to melt and this means that on increasing the temperature there will be increase in rate of reaction.
For example, ice being a solid matter when heated then it changes into liquid water.
Hence, the on increasing rate of heating there will be increase in melting point.
