The drawing of melting point illustrates the melting behavior of a solid substance. The solid sample is placed in a capillary tube and heated gradually. The melting point is the temperature at which the solid completely transforms into a liquid. The melting point is a characteristic property of the substance and can be used to identify the compound and determine its purity. The drawing shows the temperature profile of the sample as it is heated, illustrating the melting point and the melting point range.
