Factors affecting melting point

Answer 1

Answer

what factors affect the melting point?

1) Any impurity in a sample will lower the melting point, even if the impurity melts at a higher temperature.

2) An impurity will cause the sample to melt over a wider range.

Answer 2

The factor influencing the melting point range : 1-the purity of the the substance whose melting point described .the melting point partically unaffected by changes in external pressure they do changes in presence in small amount of impurites . 2-the nature and strength of intermolcular forces are responsible for the observed differences in melting point.

Answer 3

Melting points of materials are affected mainly by one thing and that is the purity. It is impossible to raise the melting point, but it is possible to depress the range, that is the point at which it will begin to melt.

Answer 4

This depends on the physical properties of what is melting. But the speed at which an item is heated does not affect the temperature at which it melts, unless it is heated in an instant by extreme heat(100s of 1,000s of degrees). This can cause a metal to become a plasma which is matter that is more dense than lead but acts as a liquid.

Answer 5

The greater the temperature, the greater the rate of melting, all things being equal. The rate of melting will ultimately depend on the rate of heat transfer, and the rate of heat transfer will be dependent on the temperature difference between the ice and the surrounding air.

Answer 6

The faster that an object heats up the quicker that it is going to melt. If the object does not heat up very quickly, then it will not melt quickly either.

Answer 7

Increasing the temperature the solubility of solids in liquids is increased.

The melting point is a constant for each substance.

Answer 8

It doesn't. Melting point is fixed for each substance at a particular pressure. However, very rapid heating can make it difficult to measure the melting point accurately.