- published: 27 May 2013
- views: 40538
The melting point of a solid is the temperature at which it changes state from solid to liquid. At the melting point the solid and liquid phase exist in equilibrium. The melting point of a substance depends (usually slightly) on pressure and is usually specified at standard pressure. When considered as the temperature of the reverse change from liquid to solid, it is referred to as the freezing point or crystallization point. Because of the ability of some substances to supercool, the freezing point is not considered as a characteristic property of a substance. When the "characteristic freezing point" of a substance is determined, in fact the actual methodology is almost always "the principle of observing the disappearance rather than the formation of ice", that is, the melting point.
For most substances, melting and freezing points are approximately equal. For example, the melting point and freezing point of the element mercury is 234.32 kelvin (−38.83 °C or −37.89 °F). However, certain substances possess differing solid-liquid transition temperatures. For example, agar melts at 85 °C (185 °F) and solidifies from 31 °C to 40 °C (89.6 °F to 104 °F); this process is known as hysteresis.
Melting Point - Kickstarter Campaign
The Hunt for the Highest Melting Point
Melting Point Determination - The Mel-Temp
Melting Point Determination
Melting Point Determination
Melting Point of an Organic Compound - OLabs - Amrita University
States of Matter - Melting Points
Boiling/Melting Points and Intermolecular Forces
Ch 12 F Melting Point Trends
Melting point of napthalene using thermometer | State | Physics
Melting Point Depression Explained
Melting Point Determination | Organic Chemistry Lab
Melting Point | MIT Digital Lab Techniques Manual
Melting Point - Mitch Murder