if impurities are present in water, it will freeze at a temperature less than 0.c
this is due to the factor in the melting point depression equation, but this equation only holds for pure liquids and "impure" liquids, commonly refered to as "solutions".
It's a different story for solids, however. I guess the basic answer to your question would be that impurities affect the crystal structure of a solid. Incindentally this leads to lowering and widening of the interval of temperature in which either of the two (or more) pure solid components would melt.
I'm assuming that since your question refers to solids and not liquids or aqueous solutions, your are in your first semester of Organic Chemistry? Good luck to you.
effects that impurities have on melting point iof a pre compound. I learned that it is because the impurities "defect" the crystal lattice of the compound. A pure compound is a structure of high molecular symmetry. An impurity is rather assymetrical, or is a poorly organized structure. If the impurites are present with the pure compound, the melting point will deviate because melting point is also dependent on the high symmetry and organization of molecular structures,
Melting point. The temperature at which a substance freezes is the same as its melting point, as this is the temperature at which a solid substance transitions into a liquid state.
It indicates that the substance has turned to a liquid.
what the heck are you asking? the melting point is not a substance. it's a temperature in which the substance starts to melt
does the melting point of a substance change over time
If the impurity has a higher boiling point then the boiling point of the mixture will also be slightly higher, and vice versa.
effects that impurities have on melting point iof a pre compound. I learned that it is because the impurities "defect" the crystal lattice of the compound. A pure compound is a structure of high molecular symmetry. An impurity is rather assymetrical, or is a poorly organized structure. If the impurites are present with the pure compound, the melting point will deviate because melting point is also dependent on the high symmetry and organization of molecular structures,
The presence of an impurity in lauric acid would likely decrease the melting point of the sample due to impurity disrupting the crystal lattice structure, making it easier for the molecules to overcome the intermolecular forces and transition from solid to liquid. The impurity can act as a defect, which requires less energy to break the bonds holding the crystal structure together, resulting in a lower melting point.
it increases up the meltingpoint of the solid
One substance that has a high melting point is diamond.
A pure substance typically has a higher melting point than an impure substance. Impurities disrupt the regular arrangement of particles in the substance, making it more difficult for them to overcome the intermolecular forces and transition from solid to liquid state. This results in a lower melting point for impure substances.
it decreases.
Celsius is a measure of temperature not a substance, and therefore it has no melting point. What is the melting point of what material in Celsius? [You haven't named the substance you want the melting point of/for]
It has reached its melting point.
The melting point of a substance is the temperature at which it changes from a solid to a liquid.
Melting point. The temperature at which a substance freezes is the same as its melting point, as this is the temperature at which a solid substance transitions into a liquid state.
The term defined as the temperature at which a substance changes from a solid to a liquid state is called the melting point.