This is the critical point.
The temperature for melting and freezing is the same. The temperature for vaporization (boiling) and condensation is also identical. Refer to the related link for a diagram that illustrates phase changes.
Melting point -111.7C Boiling point -108.12C
Melting point 28.5°C Boiling point 690°C
Melting point 113.5°C Boiling point 184.35°C
No, different liquids have different boiling and melting points depending on their chemical composition. The boiling point is the temperature at which a liquid turns into a gas, while the melting point is the temperature at which a solid turns into a liquid. Each liquid has its own unique set of physical properties that determine its specific boiling and melting points.
The melting point or boiling point ...................
The melting point or boiling point ...................
Melting and boiling are physical changes.
At a pressure of one atmosphere Germanium is a liquid between the melting temperature of 938.25 °C (that is 1720.85 °F) and the boiling temperature of 2833 °C (that is 5131 °F). This temperature range is affected by pressure and in order to have boiling and melting points for an arbitrary environmental pressure the Germanium Phase Diagram has to be consulted, providing the boiling and melting temperatures versus the environmental pressure.
The temperature for melting and freezing is the same. The temperature for vaporization (boiling) and condensation is also identical. Refer to the related link for a diagram that illustrates phase changes.
Elements have fixed melting and boiling points, while compounds have varying melting and boiling points depending on their composition. Mixtures do not have fixed melting and boiling points, as they are composed of multiple substances which each have their own individual melting and boiling points.
Melting: -259.14 C Boiling: -252.87 C
Draw a vertical line through the triple point.
The melting and boiling points of a substance (in this case I am assuming you are referring to a pure substance, and not a mixture), are the same. The triple point is defined by the temperature and pressure at which solid, liquid, and vapor of a substance, can coexist in equilibrium. At any pressure below the triple point, only sublimation and condensation are possible (no liquid phase is possible). Between the triple point pressure and the critical point pressure, there is a difference between the melting and boiling points, of a substance. The melting point temperature will be lower than the boiling point. At the critical point, the densities of the liquid and vapor phases, have merged, and boiling no longer occurs. At and above the critical point, you cease to get liquid and vapor, but you get what is referred to as a "supercritical fluid".
Melting: 700 C Boiling: 1737 C
No boiling is heating and energy is added and melting the solid turns into a liquid.
Boiling: 2355 C Melting: 1410 C