For most substances, it's the same temperature. For example, ice melts at 0°C (273K), and water freezes also at 0°C.
A few substances, such as agar, have a hysteresis. For example, agar melts at 85°C; to solidify it again, you have to cool it down to about 32-40°C.
it decreases.
It is indeed possible for a substance to have a higher melting point than expected. This normally happens when the substance is impure.
Changes the temperature of the substance
The answer is that the temperature a substance freezes is also its melting point. Water freezes at 0 degrees Celsius into ice and if you heat ice up to 0 degrees Celsius it MELTS to give you water. Evaporation is the change from liquid to gas and condensation is the change from gas to liquid (for water this happens at 100 degrees Celsius).
Simply, the melting point. Think of an ice cube. The melting point is the temperature at which the ice cube MELTS into a liquid.
it decreases.
The temperature at which a substance changes from a solid to a liquid is called the melting point.
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 temperature at which a substance changes from a solid to a liquid is known as its melting point.
The melting point of a substance is the temperature at which it changes from a solid to a liquid.
Check the melting point of the substance. If the melting point is below room temperature, then the substance is liquid and if the melting point is above room temperature then it is solid.
The melting point of a substance is determined by heating it gradually and recording the temperature at which it changes from a solid to a liquid state. This temperature is the melting point.
This is the definition of the melting point of an element or substance. The melting point is when a solid begins to turn into a liquid. A substance also has a boiling point and freezing point.
what the heck are you asking? the melting point is not a substance. it's a temperature in which the substance starts to melt
It is the boiling point of the substance.
The temperature of the environment and the melting and evaporation temperature of the substance.
= temperature at which (all of) a (pure) substance is melting: going from solid into liquid phase.